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   &lt;div align="left" style="font-size: 10pt; margin-top: 10pt"&gt;&lt;b&gt;5. Medical Office Building Joint Ventures&lt;/b&gt;
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 10pt; margin-left: 1%"&gt;&lt;i&gt;NHP/Broe, LLC and NHP/Broe II, LLC&lt;/i&gt;
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%"&gt;On August&amp;#160;21, 2009, we acquired for $4.3&amp;#160;million the 10% and 5% noncontrolling interests held
   by The Broe Companies in NHP/Broe, LLC (&amp;#8220;Broe I&amp;#8221;) and NHP/Broe II, LLC (&amp;#8220;Broe II&amp;#8221;), respectively.
   As a result of this acquisition, we now have direct ownership of the 36 multi-tenant medical office
   buildings located in nine states previously owned by Broe I and Broe II. Activity subsequent to
   August&amp;#160;21, 2009 related to these facilities is included in our consolidated activity for wholly
   owned real estate properties (see Note 3). Prior to our acquisition of Broe&amp;#8217;s interests, we
   consolidated both joint ventures in our consolidated financial statements in accordance with ASC
   810.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 10pt; margin-left: 1%"&gt;&lt;i&gt;McShane/NHP JV, LLC&lt;/i&gt;
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%"&gt;In December&amp;#160;2007, we entered into a joint venture with McShane called McShane/NHP JV, LLC
   (&amp;#8220;McShane/NHP&amp;#8221;) to invest in multi-tenant medical office buildings. We hold a 95% equity interest
   in the joint venture and McShane holds a 5% equity interest. McShane is the managing member of
   McShane/NHP, but we consolidate the joint venture in our consolidated financial statements. The
   accounting policies of the joint venture are consistent with our accounting policies.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%"&gt;Cash distributions from McShane/NHP are made in accordance with the members&amp;#8217; ownership
   interests until specified returns are achieved. As the specified returns are achieved, McShane will
   receive an increasing percentage of the cash distributions from the joint venture. No cash
   distributions were made during the three months ended March&amp;#160;31, 2010.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%"&gt;At March&amp;#160;31, 2010, McShane/NHP owned seven multi-tenant medical office buildings located in
   one state.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%"&gt;During the three months ended March&amp;#160;31, 2010, McShane/NHP funded $0.1&amp;#160;million in capital and
   tenant improvements at certain facilities.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%"&gt;All intercompany balances with McShane/NHP have been eliminated for purposes of our
   consolidated financial statements.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 10pt; margin-left: 1%"&gt;&lt;i&gt;NHP/PMB
   L.P.&lt;/i&gt;
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%"&gt;In February&amp;#160;2008, we entered into an agreement (the &amp;#8220;Contribution Agreement&amp;#8221;) with Pacific
   Medical Buildings LLC and certain of its affiliates to acquire up to 18 medical office buildings,
   including six in development, for $747.6&amp;#160;million, including the assumption of approximately $282.6
   million of mortgage financing. Under the Contribution Agreement, in 2008, NHP/PMB acquired
   interests in nine of the 18 medical office buildings, including one property which is included in
   our triple-net leases segment and eight properties which are multi-tenant medical office buildings
   (one of which consisted of a 50% interest through a joint venture which is consolidated by
   NHP/PMB). During 2008, we also acquired one of the 18 medical office buildings directly (not
   through NHP/PMB). During 2009, we elected to terminate the Contribution Agreement with respect to
   six properties after the conditions for us to close on such properties were not satisfied. As a
   result of the elimination of these six properties, under the Contribution Agreement, NHP/PMB became
   obligated to pay $3.0&amp;#160;million, of which $2.7&amp;#160;million was payable to Pacific Medical Buildings LLC.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%"&gt;As of February&amp;#160;1, 2010, we entered into an amendment to the Contribution Agreement which
   reinstated one of the six properties that were previously eliminated from the Contribution
   Agreement. NHP/PMB acquired such multi-tenant medical office building for $74.0&amp;#160;million, which was
   paid in a combination of cash and the issuance of 301,599 OP Units with a fair value at the date of
   issuance of $10.0&amp;#160;million. As a result of such acquisition, we retired our $47.5&amp;#160;million mortgage
   loan from a related party to which such acquired medical office building had served as collateral
   (see Note 18). Additionally, as of February&amp;#160;1, 2010, we acquired a majority ownership interest in a
   joint venture which owns one multi-tenant medical office building (see &lt;i&gt;NHP/PMB Gilbert LLC &lt;/i&gt;below),
   amended and restated our agreement with NHP/PMB, PMB LLC and PMB Real Estate Services LLC
   (&amp;#8220;PMBRES&amp;#8221;) as described below and amended our agreement with PMB Pomona LLC to provide for the
   future acquisition by NHP/PMB of a medical office building currently in development (see Note 18).
   In connection with these transactions, NHP/PMB entered into a Third Amendment to the Amended and
   Restated Agreement of Limited Partnership, which, among other things, authorized NHP/PMB to acquire
   properties affiliated with Pacific Medical Buildings LLC pursuant to agreements other than the
   Contribution Agreement.
   &lt;/div&gt;
   &lt;!-- Folio --&gt;
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   &lt;/div&gt;
   &lt;!-- PAGEBREAK --&gt;
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   &lt;/b&gt;
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   &lt;div align="center" style="font-size: 10pt; margin-top: 0pt"&gt;
   &lt;b&gt;
   &lt;/b&gt;
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   &lt;div align="left" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%"&gt;As of March&amp;#160;1, 2010, we entered into an amendment to the Contribution Agreement which
       reinstated another two of the six properties that were previously eliminated from the Contribution
       Agreement. NHP/PMB acquired a 65% interest in a joint venture which is consolidated by NHP/PMB that
       owns one of the two multi-tenant medical office buildings valued at $79.9&amp;#160;million. The acquisition
       was paid in a combination of cash, the assumption of $48.1&amp;#160;million of mortgage financing and the
       issuance of 152,238 OP Units with a fair value at the date of issuance of $5.0&amp;#160;million. NHP/PMB
       acquired a 69% interest in a joint venture which is consolidated by NHP/PMB that owns the second
       multi-tenant medical office building valued at $69.3&amp;#160;million. The acquisition was paid in a
       combination of cash, the assumption of $50.2&amp;#160;million of mortgage financing and the issuance of
       121,489 OP Units with a fair value at the date of issuance of $4.0&amp;#160;million. Additionally, as of
       March&amp;#160;1, 2010, we acquired the remaining interest in PMB SB (see Note 6).
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%"&gt;The amendment to the Contribution Agreement dated as of March&amp;#160;1, 2010 also eliminated one of
       the two remaining properties from the Contribution Agreement, however, we concurrently entered into
       a joint venture with PMB Pasadena LLC (an entity affiliated with Pacific Medical Buildings LLC) to
       acquire this property (see &lt;i&gt;NHP/PMB Pasadena LLC &lt;/i&gt;below). As a result of the elimination of this
       property from the Contribution Agreement, NHP/PMB became obligated to pay $2.1&amp;#160;million (the
   &amp;#8220;Premium Adjustment&amp;#8221;), of which $1.9&amp;#160;million was payable to Pacific Medical Buildings LLC in cash.
   The portion of the Premium Adjustment not payable to Pacific Medical Buildings LLC was paid in the
       form of $0.1&amp;#160;million in cash and the issuance of 1,788 additional OP Units with an aggregate value
       of $57,000. As a result of the payment, we received an additional 4,514 Class&amp;#160;B limited partnership
       units in NHP/PMB. Under the Contribution Agreement, if the agreement is terminated with respect to
       the remaining development property, NHP/PMB will become obligated to pay approximately $2.4&amp;#160;million
   (the &amp;#8220;Future Premium Adjustment&amp;#8221;) which has been accrued at March&amp;#160;31, 2010 and of which a portion
       would be payable to Pacific Medical Buildings LLC.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%"&gt;Under the terms of the Contribution Agreement, a portion of the consideration for the
       multi-tenant medical office buildings is to be paid in the form of OP Units. After a one-year
       holding period, the OP Units are exchangeable for cash or, at our option, shares of our common
       stock, initially on a one-for-one basis. During the three months ended March&amp;#160;31, 2010, 401 OP Units
       were converted into 401 shares of our common stock. At March&amp;#160;31, 2010, 1,626,800 of the remaining
       OP Units had been outstanding for one year or longer and were exchangeable for cash of $57.2
   million. During the three months ended March&amp;#160;31, 2010, cash distributions from NHP/PMB of $0.4
   million were made to OP unitholders.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%"&gt;Additionally, we have entered into an agreement with NHP/PMB, PMB LLC and PMBRES (see Note 6)
   pursuant to which we or NHP/PMB currently have the right, but not the obligation, to acquire up to
       approximately $1.3&amp;#160;billion of multi-tenant medical office buildings developed by PMB LLC through
       April&amp;#160;2019. As of February&amp;#160;1, 2010, this agreement was amended and restated to provide NHP/PMB with
       the option to acquire medical office buildings developed in the future through a joint venture
       between NHP and PMB LLC, obligate us to provide or arrange financing for approved developments and
       provide us with improved terms, including preferred returns, a reduction in PMB LLC&amp;#8217;s promote
       interest and acquisition pricing determined at the time of acquisition rather that at the
       pre-development stage.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%"&gt;During the three months ended March&amp;#160;31, 2010, NHP/PMB funded $0.1&amp;#160;million in capital and
       tenant improvements at certain facilities.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%"&gt;All intercompany balances with NHP/PMB have been eliminated for purposes of our consolidated
       financial statements.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 10pt; margin-left: 1%"&gt;&lt;i&gt;NHP/PMB Gilbert LLC&lt;/i&gt;
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%"&gt;As of February&amp;#160;1, 2010, we entered into a joint venture with PMB Gilbert LLC (an entity
       affiliated with Pacific Medical Buildings LLC) called NHP/PMB Gilbert LLC (&amp;#8220;Gilbert JV&amp;#8221;) to acquire
       a multi-tenant medical office building. PMB Gilbert LLC contributed the multi-tenant medical office
       building to Gilbert JV, and we contributed $6.3&amp;#160;million in cash. Additionally, we agreed to loan
       Gilbert JV up to $8.8&amp;#160;million as project financing at an interest rate of 7.00%, including $6.8
   million that was disbursed initially and remains outstanding at March&amp;#160;31, 2010. We
       hold a 71.17% equity interest in the joint venture and PMB Gilbert LLC holds a 28.83% equity
       interest. PMB Gilbert LLC is the managing member of Gilbert JV, but we consolidate the joint
       venture in our consolidated financial statements. The accounting policies of the joint venture are
       consistent with our accounting policies. Pursuant to a contribution agreement dated as of February
       1, 2010, among us, NHP/PMB, Pacific Medical Buildings LLC and PMB Gilbert LLC, NHP/PMB may in the
       future acquire Gilbert JV if certain conditions are met.
   &lt;/div&gt;
   &lt;!-- Folio --&gt;
   &lt;!-- /Folio --&gt;
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   &lt;!-- PAGEBREAK --&gt;
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   &lt;div align="left" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%"&gt;Net income or loss is allocated between the partners in the joint venture based on the
       hypothetical liquidation at book value method (the &amp;#8220;HLBV method&amp;#8221;). Under the HLBV method, net
       income or loss is allocated between the partners based on the difference between each partner&amp;#8217;s
       claim on the net assets of the partnership at the end and beginning of the period, after taking
       into account contributions and distributions. Each partner&amp;#8217;s share of the net assets of the
       partnership is calculated as the amount that the partner would receive if the partnership were to
       liquidate all of its assets at net book value and distribute the resulting cash to creditors and
       partners in accordance with their respective priorities. Under this method, in any given period, we
       could be recording more or less income than the joint venture has generated or more or less income
       than actual cash distributions received and more or less than what we may receive in the event of
       an actual liquidation. No cash distributions were made during the three months ended March&amp;#160;31,
       2010.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%"&gt;All intercompany balances with Gilbert JV have been eliminated for purposes of our
       consolidated financial statements.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 10pt; margin-left: 1%"&gt;&lt;i&gt;NHP/PMB Pasadena LLC&lt;/i&gt;
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%"&gt;As of March&amp;#160;1, 2010, we entered into a joint venture with PMB Pasadena LLC (an entity
       affiliated with Pacific Medical Buildings LLC) called NHP/PMB Pasadena LLC (&amp;#8220;Pasadena JV&amp;#8221;) to
       acquire a multi-tenant medical office building. PMB Pasadena LLC contributed the multi-tenant
       medical office building to Pasadena JV, and we contributed $13.5&amp;#160;million in cash. Additionally, we
       provided Pasadena JV with a $56.5&amp;#160;million mortgage loan at an initial interest rate equal to the
       greater of 3.50% or LIBOR plus 165 basis points (increasing to the greater of 5.125% or LIBOR plus
       375 basis points as of April&amp;#160;1, 2010), of which $49.8&amp;#160;million has been funded, and a $3.0&amp;#160;million
       mezzanine loan at an interest rate of 15.00%, both of which remain outstanding at March&amp;#160;31, 2010.
   We hold a 71% equity interest in the joint venture and PMB Pasadena LLC holds a 29% equity
       interest. PMB Pasadena LLC is the managing member of Pasadena JV, but we consolidate the joint
       venture in our consolidated financial statements. The accounting policies of the joint venture are
       consistent with our accounting policies. Pursuant to a contribution agreement dated as of March&amp;#160;1,
       2010, among us, NHP/PMB, Pacific Medical Buildings LLC and PMB Pasadena LLC, NHP/PMB may in the
       future acquire Pasadena JV if certain conditions are met.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%"&gt;Net income or loss is allocated between the partners in the joint venture based on the HLBV
       method. No cash distributions were made during the three months ended March&amp;#160;31, 2010.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%"&gt;All intercompany balances with Pasadena JV have been eliminated for purposes of our
       consolidated financial statements.
   &lt;/div&gt;
   &lt;/div&gt;
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