INVESTMENT IN UNCONSOLIDATED JOINT VENTURES	12 Months Ended
Dec. 31, 2020
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES	NOTE 14. INVESTMENT IN UNCONSOLIDATED JOINT VENTURES The Partnership has invested in seven limited partnerships and limited liability companies, the majority of which have invested in residential apartment complexes, with three Joint Ventures investing in commercial property. The Partnership has between a 40%-50% ownership interests in each investment. The other investors are the Brown Family related entities and five current and former employees of the Management Company. The Brown Family related entities ownership interest was between 47.6% and 59%, with the balance owned by the others. A description of each investment is as follows: On October 28, 2009 the Partnership invested approximately $15,925,000 in a joint venture to acquire a 40% interest in a residential property located in Brookline, Massachusetts. The property, Hamilton Park Towers LLC, referred to as Dexter Park, is a 409 unit residential complex. The purchase price was $129,500,000. The original mortgage was $89,914,000 with an interest rate of 5.57% and it matured in 2019. The mortgage called for interest only payments for the first two years of the loan and amortized over 30 years thereafter. On May 31, 2018, Hamilton Park Towers, LLC entered into a mortgage note with John Hancock Life Insurance Company (U.S.A.) in the principal amount of $125,000,000. Interest only payments on the note are payable on a monthly basis at a fixed interest rate of 3.99% per annum, and the principal amount of the note is due and payable on June 1, 2028. The Note is secured by a mortgage on the Dexter Park apartment complex located at 175 Freeman Street, Brookline, Massachusetts, pursuant to a Mortgage, Assignment of Leases and Rents and Security Agreement dated May 31, 2018. The Note is guaranteed by the Partnership and HBC Holdings, LLC pursuant to a Guaranty Agreement dated May 31, 2018. Hamilton Park used the proceeds of the loan to pay off an outstanding loan of approximately $82,000,000 and distributed approximately $41,200,000 to its’ owners. The Partnership’s share of the distribution was approximately $16,500,000. As a result of the distribution, the carrying value of the investment fell below zero. The Partnership will continue to account for the investment using the equity method of accounting, although the Partnership has no legal obligation to fund its’ share of any future operating deficiencies as needed. In connection with this refinancing, the property incurred a defeasance charge of approximately $3,830,000. Based on its’ ownership in the property, the Partnership incurred 40% of this charge, an expense of approximately $1,532,000. This charge had a material effect on the 2018 net income. At December 31, 2020, the balance on this mortgage before unamortized deferred financing costs is approximately $125,000,000. This investment, Hamilton Park Towers, LLC is referred to as Dexter Park. On October 3, 2005, the Partnership invested $2,500,000 for a 50% ownership interest in a 168-unit apartment complex in Quincy, Massachusetts. The purchase price was $30,875,000. The Joint Venture sold 120 units as condominiums and retained 48 units for long-term investment. In February 2007, the Joint Venture refinanced the 48 units with a new 10 year mortgage in the original amount of $4,750,000 with an interest rate of 5.57%, interest only for five years. The loan was to be amortized over 30 years with a maturity date of March 2017. On March 1, 2017, the mortgage balance was paid in full, with the Partnership contributing its share of the mortgage balance of approximately $2,222,000. After paying off the mortgage, the Partnership sold the individual units. 3 units were sold in 2019, resulting in a gain of approximately $429,000. As of December 30, 2019, all units have been sold by this Joint Venture. This investment is referred to as Hamilton Bay Apartments, LLC. On March 7, 2005, the Partnership invested $2,000,000 for a 50% ownership interest in a building comprising 48 apartments, one commercial space and a 50-car surface parking lot located in Boston, Massachusetts. The purchase price was $14,300,000, with a $10,750,000 mortgage. The Joint Venture planned to operate the building and initiate development of the parking lot. In June 2007, the Joint Venture separated the parcels, formed an additional limited liability company for the residential apartments and obtained a mortgage on the property. The new limited liability company formed for the residential apartments and commercial space is referred to as Hamilton Essex 81, LLC. In August 2008, the Joint Venture restructured the mortgages on both parcels at Essex 81. On September 28, 2015, Hamilton Essex Development, LLC paid off the outstanding mortgage balance of $1,952,286. The Partnership made a capital contribution of $978,193 to Hamilton Essex Development LLC for its share of the funds required for the transaction. Additionally, the Partnership made a capital contribution of $100,000 to Hamilton Essex 81, LLC. On September 30, 2015, Hamilton Essex 81, LLC obtained a new 10 year mortgage in the amount of $10,000,000, interest only at 2.18% plus the one month Libor rate. The proceeds of the note were used to pay off the existing mortgage of $8,040,719 and the Partnership received a distribution of $978,193 for its share of the excess proceeds. As a result of the distribution, the carrying value of the investment fell below zero. The Partnership will continue to account for this investment using the equity method of accounting. Although the Partnership has no legal obligation, the Partnership intends to fund its share of any future operating deficits if needed. At December 31, 2020, the balance on this mortgage before unamortized deferred financing costs is approximately $10,000,000. The investment in the parking lot is referred to as Hamilton Essex Development, LLC; the investment in the apartments is referred to as Hamilton Essex 81, LLC. On March 2, 2005, the Partnership invested $2,352,000 for a 50% ownership interest in a 176-unit apartment complex with an additional small commercial building located in Quincy, Massachusetts. The purchase price was $23,750,000. The Partnership sold 127 of the units as condominiums and retained 49 units for long-term investment. The Partnership obtained a new 10-year mortgage in the amount of $5,000,000 on the units to be retained by the Partnership. The interest on the new loan was 5.67% fixed for the 10 year term with interest only payments for five years and amortized over a 30 year period for the balance of the loan term. On July 8, 2016, Hamilton 1025 LLC paid off the outstanding balance of the mortgage balance. The Partnership made a capital contribution of $2,359,500 to Hamilton 1025, LLC for its share of the funds required for the transaction. After paying off the mortgage, the Partnership began to sell off the individual units. 2 units were sold in 2019, resulting in a gain of approximately $306,000. As of December 31, 2020, all residential units were sold. The Partnership still owns the commercial building. This investment is referred to as Hamilton 1025, LLC. In September 2004, the Partnership invested approximately $5,075,000 for a 50% ownership interest in a 42-unit apartment complex located in Lexington, Massachusetts. The purchase price was $10,100,000. In October 2004, the Joint Venture obtained a mortgage on the property in the amount of $8,025,000 and returned $3,775,000 to the Partnership. The Joint Venture obtained a new 10-year mortgage in the amount of $5,500,000 in January 2007. The interest on the new loan was 5.67% fixed for the ten year term with interest only payments for five years and amortized over a 30 year period for the balance of the loan. This loan required a cash contribution by the Partnership of $1,250,000 in December 2006. On September 12, 2016, the property was refinanced with a 15 year mortgage in the amount of $6,000,000, at 3.71%, interest only. The Joint Venture Partnership paid off the prior mortgage of approximately $5,158,000 with the proceeds of the new mortgage and made a distribution of $385,000 to the Partnership. The cost associated with the refinancing was approximately $123,000. At December 31, 2020, the balance on this mortgage before unamortized deferred financing costs is approximately $6,000,000. In 2018, the carrying value of the investment fell below zero. The Partnership will continue to account for this investment using the equity method of accounting, although the Partnership has no legal obligation to fund its share of any future operating deficiencies, if needed. This investment is referred to as Hamilton Minuteman, LLC. In August 2004, the Partnership invested $8,000,000 for a 50% ownership interest in a 280-unit apartment complex located in Watertown, Massachusetts. The total purchase price was $56,000,000. The Joint Venture sold 137 units as condominiums. The assets were combined with Hamilton on Main Apartments. Hamilton on Main Apartments, LLC is known as Hamilton Place. In 2005, Hamilton on Main Apartments, LLC obtained a ten year mortgage on the three buildings to be retained. The mortgage was $16,825,000, with interest only of 5.18% for three years and amortizing on a 30 year schedule for the remaining seven years when the balance was due. The net proceeds after funding escrow accounts and closing costs on the mortgage were approximately $16,700,000, which were used to reduce the existing mortgage. In August 2014, the property was refinanced with a 10 year mortgage in the amount of $16,900,000 at 4.34% interest only. The Joint Venture paid off the prior mortgage of approximately $15,205,000 with the proceeds of the new mortgage and distributed $850,000 to the Partnership. The costs associated with the refinancing were approximately $161,000. At December 31, 2020, the balance of the mortgage before unamortized deferred financing costs is approximately $16,900,000. In 2018, the carrying value of the investment fell below zero. The Partnership will continue to account for this investment using the equity method of accounting, although the Partnership has no legal obligation to fund its share of any future operating deficiencies, if needed. The investment is referred to as Hamilton On Main Apartments, LLC. In November 2001, the Partnership invested approximately $1,533,000 for a 50% ownership interest in a 40-unit apartment building in Cambridge, Massachusetts. In June 2013, the property was refinanced with a 15 year mortgage in the amount of $10,000,000 at 3.87%, interest only for 3 years and is amortized on a 30-year schedule for the balance of the term. The Joint Venture paid off the prior mortgage of approximately $6,776,000 with the proceeds of the new mortgage. After the refinancing, the Joint Venture made a distribution of $1,610,000 to the Partnership. As a result of the distribution, the carrying value of the investment fell below zero. The Partnership will continue to account for this investment using the equity method of accounting. Although the Partnership has no legal obligation, the Partnership intends to fund its share of any future operating deficits if needed. At December 31, 2020, the balance of this mortgage before unamortized deferred financing costs is approximately $9,149,000. This investment is referred to as 345 Franklin, LLC.

INVESTMENT IN UNCONSOLIDATED JOINT VENTURES

12 Months Ended

Dec. 31, 2020

INVESTMENT IN UNCONSOLIDATED JOINT VENTURES

INVESTMENT IN UNCONSOLIDATED JOINT VENTURES

NOTE 14. INVESTMENT IN UNCONSOLIDATED JOINT VENTURES

The Partnership has invested in seven limited partnerships and limited liability companies, the majority of which have invested in residential apartment complexes, with three Joint Ventures investing in commercial property. The Partnership has between a 40%-50% ownership interests in each investment. The other investors are the Brown Family related entities and five current and former employees of the Management Company. The Brown Family related entities ownership interest was between 47.6% and 59%, with the balance owned by the others. A description of each investment is as follows:

On October 28, 2009 the Partnership invested approximately $15,925,000 in a joint venture to acquire a 40% interest in a residential property located in Brookline, Massachusetts. The property, Hamilton Park Towers LLC, referred to as Dexter Park, is a 409 unit residential complex. The purchase price was $129,500,000. The original mortgage was $89,914,000 with an interest rate of 5.57% and it matured in 2019. The mortgage called for interest only payments for the first two years of the loan and amortized over 30 years thereafter.

On May 31, 2018, Hamilton Park Towers, LLC entered into a mortgage note with John Hancock Life Insurance Company (U.S.A.) in the principal amount of $125,000,000. Interest only payments on the note are payable on a monthly basis at a fixed interest rate of 3.99% per annum, and the principal amount of the note is due and payable on

June 1, 2028. The Note is secured by a mortgage on the Dexter Park apartment complex located at 175 Freeman Street, Brookline, Massachusetts, pursuant to a Mortgage, Assignment of Leases and Rents and Security Agreement dated May 31, 2018. The Note is guaranteed by the Partnership and HBC Holdings, LLC pursuant to a Guaranty Agreement dated May 31, 2018.

Hamilton Park used the proceeds of the loan to pay off an outstanding loan of approximately $82,000,000 and distributed approximately $41,200,000 to its’ owners. The Partnership’s share of the distribution was approximately $16,500,000. As a result of the distribution, the carrying value of the investment fell below zero. The Partnership will continue to account for the investment using the equity method of accounting, although the Partnership has no legal obligation to fund its’ share of any future operating deficiencies as needed. In connection with this refinancing, the property incurred a defeasance charge of approximately $3,830,000. Based on its’ ownership in the property, the Partnership incurred 40% of this charge, an expense of approximately $1,532,000. This charge had a material effect on the 2018 net income.

At December 31, 2020, the balance on this mortgage before unamortized deferred financing costs is approximately $125,000,000. This investment, Hamilton Park Towers, LLC is referred to as Dexter Park.

On October 3, 2005, the Partnership invested $2,500,000 for a 50% ownership interest in a 168-unit apartment complex in Quincy, Massachusetts. The purchase price was $30,875,000. The Joint Venture sold 120 units as condominiums and retained 48 units for long-term investment. In February 2007, the Joint Venture refinanced the 48 units with a new 10 year mortgage in the original amount of $4,750,000 with an interest rate of 5.57%, interest only for five years. The loan was to be amortized over 30 years with a maturity date of March 2017. On March 1, 2017, the mortgage balance was paid in full, with the Partnership contributing its share of the mortgage balance of approximately $2,222,000. After paying off the mortgage, the Partnership sold the individual units. 3 units were sold in 2019, resulting in a gain of approximately $429,000. As of December 30, 2019, all units have been sold by this Joint Venture. This investment is referred to as Hamilton Bay Apartments, LLC.

On March 7, 2005, the Partnership invested $2,000,000 for a 50% ownership interest in a building comprising 48 apartments, one commercial space and a 50-car surface parking lot located in Boston, Massachusetts. The purchase price was $14,300,000, with a $10,750,000 mortgage. The Joint Venture planned to operate the building and initiate development of the parking lot. In June 2007, the Joint Venture separated the parcels, formed an additional limited liability company for the residential apartments and obtained a mortgage on the property. The new limited liability company formed for the residential apartments and commercial space is referred to as Hamilton Essex 81, LLC. In August 2008, the Joint Venture restructured the mortgages on both parcels at Essex 81. On September 28, 2015, Hamilton Essex Development, LLC paid off the outstanding mortgage balance of $1,952,286. The Partnership made a capital contribution of $978,193 to Hamilton Essex Development LLC for its share of the funds required for the transaction. Additionally, the Partnership made a capital contribution of $100,000 to Hamilton Essex 81, LLC. On September 30, 2015, Hamilton Essex 81, LLC obtained a new 10 year mortgage in the amount of $10,000,000, interest only at 2.18% plus the one month Libor rate. The proceeds of the note were used to pay off the existing mortgage of $8,040,719 and the Partnership received a distribution of $978,193 for its share of the excess proceeds. As a result of the distribution, the carrying value of the investment fell below zero. The Partnership will continue to account for this investment using the equity method of accounting. Although the Partnership has no legal obligation, the Partnership intends to fund its share of any future operating deficits if needed. At December 31, 2020, the balance on this mortgage before unamortized deferred financing costs is approximately $10,000,000. The investment in the parking lot is referred to as Hamilton Essex Development, LLC; the investment in the apartments is referred to as Hamilton Essex 81, LLC.

On March 2, 2005, the Partnership invested $2,352,000 for a 50% ownership interest in a 176-unit apartment complex with an additional small commercial building located in Quincy, Massachusetts. The purchase price was

$23,750,000. The Partnership sold 127 of the units as condominiums and retained 49 units for long-term investment. The Partnership obtained a new 10-year mortgage in the amount of $5,000,000 on the units to be retained by the Partnership. The interest on the new loan was 5.67% fixed for the 10 year term with interest only payments for five years and amortized over a 30 year period for the balance of the loan term. On July 8, 2016, Hamilton 1025 LLC paid off the outstanding balance of the mortgage balance. The Partnership made a capital contribution of $2,359,500 to Hamilton 1025, LLC for its share of the funds required for the transaction. After paying off the mortgage, the Partnership began to sell off the individual units. 2 units were sold in 2019, resulting in a gain of approximately $306,000. As of December 31, 2020, all residential units were sold. The Partnership still owns the commercial building. This investment is referred to as Hamilton 1025, LLC.

In September 2004, the Partnership invested approximately $5,075,000 for a 50% ownership interest in a 42-unit apartment complex located in Lexington, Massachusetts. The purchase price was $10,100,000. In October 2004, the Joint Venture obtained a mortgage on the property in the amount of $8,025,000 and returned $3,775,000 to the Partnership. The Joint Venture obtained a new 10-year mortgage in the amount of $5,500,000 in January 2007. The interest on the new loan was 5.67% fixed for the ten year term with interest only payments for five years and amortized over a 30 year period for the balance of the loan. This loan required a cash contribution by the Partnership of $1,250,000 in December 2006. On September 12, 2016, the property was refinanced with a 15 year mortgage in the amount of $6,000,000, at 3.71%, interest only. The Joint Venture Partnership paid off the prior mortgage of approximately $5,158,000 with the proceeds of the new mortgage and made a distribution of $385,000 to the Partnership. The cost associated with the refinancing was approximately $123,000. At December 31, 2020, the balance on this mortgage before unamortized deferred financing costs is approximately $6,000,000. In 2018, the carrying value of the investment fell below zero. The Partnership will continue to account for this investment using the equity method of accounting, although the Partnership has no legal obligation to fund its share of any future operating deficiencies, if needed. This investment is referred to as Hamilton Minuteman, LLC.

In August 2004, the Partnership invested $8,000,000 for a 50% ownership interest in a 280-unit apartment complex located in Watertown, Massachusetts. The total purchase price was $56,000,000. The Joint Venture sold 137 units as condominiums. The assets were combined with Hamilton on Main Apartments. Hamilton on Main Apartments, LLC is known as Hamilton Place. In 2005, Hamilton on Main Apartments, LLC obtained a ten year mortgage on the three buildings to be retained. The mortgage was $16,825,000, with interest only of 5.18% for three years and amortizing on a 30 year schedule for the remaining seven years when the balance was due. The net proceeds after funding escrow accounts and closing costs on the mortgage were approximately $16,700,000, which were used to reduce the existing mortgage. In August 2014, the property was refinanced with a 10 year mortgage in the amount of $16,900,000 at 4.34% interest only. The Joint Venture paid off the prior mortgage of approximately $15,205,000 with the proceeds of the new mortgage and distributed $850,000 to the Partnership. The costs associated with the refinancing were approximately $161,000. At December 31, 2020, the balance of the mortgage before unamortized deferred financing costs is approximately $16,900,000. In 2018, the carrying value of the investment fell below zero. The Partnership will continue to account for this investment using the equity method of accounting, although the Partnership has no legal obligation to fund its share of any future operating deficiencies, if needed. The investment is referred to as Hamilton On Main Apartments, LLC.

In November 2001, the Partnership invested approximately $1,533,000 for a 50% ownership interest in a 40-unit apartment building in Cambridge, Massachusetts. In June 2013, the property was refinanced with a 15 year mortgage in the amount of $10,000,000 at 3.87%, interest only for 3 years and is amortized on a 30-year schedule for the balance of the term. The Joint Venture paid off the prior mortgage of approximately $6,776,000 with the proceeds of the new mortgage. After the refinancing, the Joint Venture made a distribution of $1,610,000 to the Partnership. As a result of the distribution, the carrying value of the investment fell below zero. The Partnership will continue to account for this investment using the equity method of accounting. Although the Partnership has no legal obligation, the Partnership intends to fund its share of any future operating deficits if needed. At December 31, 2020, the balance of this mortgage before unamortized deferred financing costs is approximately $9,149,000. This investment is referred to as 345 Franklin, LLC.