12. Other Assets

The following represents the other assets at September 30, 2018 and December 31, 2017:

	September 30, 2018		December 31, 2017
Deferred financing costs, net	$	484,144	$	383,133
Fair value of derivative instruments (Note 16)		1,063,975		597,221
Taxable mortgage revenue bonds, at fair market value		2,339,902		2,422,459
Bond purchase commitments, at fair market value (Note 17)		1,046,445		3,002,540
Other assets		2,016,286		942,949
Total other assets	$	6,950,752	$	7,348,302

See Note 21 for a description of the methodology and significant assumptions for determining the fair value of derivative instruments, taxable MRBs and bond purchase commitments. Unrealized gains or losses on these assets are recorded in the condensed consolidated statements of comprehensive income (loss) to reflect changes in their estimated fair values resulting from market conditions and fluctuations in the present value of the expected cash flows from the assets.