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INVESTMENT IN UNCONSOLIDATED JOINT VENTURES (Balance Sheet) (Details) | Jun. 30, 2023 USD ($) property | Dec. 31, 2022 USD ($) | Jun. 30, 2022 USD ($) property | Dec. 31, 2021 USD ($) | May 31, 2018 USD ($) | Oct. 28, 2009 item | Mar. 07, 2005 item | Mar. 02, 2005 item | Sep. 30, 2004 item | Aug. 31, 2004 item | Nov. 30, 2001 item
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
ASSETS |  |  |  |  |  |  |  |  |  |  |
Rental Properties | $ 247,450,840 | $ 241,076,431 |  |  |  |  |  |  |  |  |
Cash & Cash Equivalents | 55,700,166 | 49,560,723 |  |  |  |  |  |  |  |  |
Rent Receivable | 769,712 | 655,814 |  |  |  |  |  |  |  |  |
Real Estate Tax Escrows | 2,149,919 | 1,943,680 |  |  |  |  |  |  |  |  |
Prepaid Expenses & Other Assets | 11,075,437 | 8,814,112 |  |  |  |  |  |  |  |  |
Total Assets | 386,936,754 | 391,820,280 |  |  |  |  |  |  |  |  |
LIABILITIES AND PARTNERS' CAPITAL |  |  |  |  |  |  |  |  |  |  |
Mortgage Notes Payable | 409,834,512 | 410,966,199 |  |  |  |  |  |  |  |  |
Accounts Payable & Accrued Expense | 5,567,224 | 7,271,729 |  |  |  |  |  |  |  |  |
Advance Rental Pmts & Security Deposits | 9,878,020 | 9,032,580 |  |  |  |  |  |  |  |  |
Total Liabilities | 451,242,787 | 451,689,637 |  |  |  |  |  |  |  |  |
Partners' Capital | (64,306,033) | (59,869,357) | $ (59,372,762) | $ (49,292,607) |  |  |  |  |  |  |
Total Liabilities and Partners' Capital | 386,936,754 | 391,820,280 |  |  |  |  |  |  |  |  |
Distribution and Loss in Excess of investments in Unconsolidated Joint Ventures | (25,963,031) | $ (24,419,129) |  |  |  |  |  |  |  |  |
Investment Properties |  |  |  |  |  |  |  |  |  |  |
ASSETS |  |  |  |  |  |  |  |  |  |  |
Rental Properties | 104,760,781 |  | 109,473,753 |  |  |  |  |  |  |  |
Cash & Cash Equivalents | 4,400,626 |  | 4,005,493 |  |  |  |  |  |  |  |
Rent Receivable | 448,456 |  | 475,307 |  |  |  |  |  |  |  |
Real Estate Tax Escrows | 274,066 |  | 207,892 |  |  |  |  |  |  |  |
Prepaid Expenses & Other Assets | 3,409,066 |  | 3,491,947 |  |  |  |  |  |  |  |
Total Assets | 113,292,995 |  | 117,654,392 |  |  |  |  |  |  |  |
LIABILITIES AND PARTNERS' CAPITAL |  |  |  |  |  |  |  |  |  |  |
Mortgage Notes Payable | 166,031,339 |  | 166,148,408 |  |  |  |  |  |  |  |
Accounts Payable & Accrued Expense | 1,381,218 |  | 1,098,219 |  |  |  |  |  |  |  |
Advance Rental Pmts & Security Deposits | 4,859,356 |  | 5,063,187 |  |  |  |  |  |  |  |
Total Liabilities | 172,271,913 |  | 172,309,814 |  |  |  |  |  |  |  |
Partners' Capital | (58,978,918) |  | (54,655,422) |  |  |  |  |  |  |  |
Total Liabilities and Partners' Capital | 113,292,995 |  | 117,654,392 |  |  |  |  |  |  |  |
Investment in Unconsolidated Joint Ventures | 1,435,154 |  | 1,463,665 |  |  |  |  |  |  |  |
Distribution and Loss in Excess of investments in Unconsolidated Joint Ventures | (25,963,031) |  | (24,097,346) |  |  |  |  |  |  |  |
Total Investment in Unconsolidated Joint Ventures (Net) | $ (24,527,877) |  | $ (22,633,681) |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |  |  |  |
Total | property | 690 |  | 865 |  |  |  |  |  |  |  |
Units to be retained | property | 690 |  | 690 |  |  |  |  |  |  |  |
Total number of units sold | property | 175 |  | 175 |  |  |  |  |  |  |  |
Investment Properties | Residential buildings |  |  |  |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |  |  |  |
Total | property | 687 |  | 862 |  |  |  |  |  |  |  |
Investment Properties | Commercial |  |  |  |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |  |  |  |
Total | property | 3 |  | 3 |  |  |  |  |  |  |  |
Hamilton Essex 81 |  |  |  |  |  |  |  |  |  |  |
ASSETS |  |  |  |  |  |  |  |  |  |  |
Rental Properties | $ 5,614,141 |  | $ 6,045,672 |  |  |  |  |  |  |  |
Cash & Cash Equivalents | 997,622 |  | 709,651 |  |  |  |  |  |  |  |
Rent Receivable | 211,562 |  | 208,605 |  |  |  |  |  |  |  |
Real Estate Tax Escrows | 67,281 |  | 73,643 |  |  |  |  |  |  |  |
Prepaid Expenses & Other Assets | 326,548 |  | 319,717 |  |  |  |  |  |  |  |
Total Assets | 7,217,154 |  | 7,357,288 |  |  |  |  |  |  |  |
LIABILITIES AND PARTNERS' CAPITAL |  |  |  |  |  |  |  |  |  |  |
Mortgage Notes Payable | 9,968,975 |  | 9,955,186 |  |  |  |  |  |  |  |
Accounts Payable & Accrued Expense | 165,149 |  | 105,777 |  |  |  |  |  |  |  |
Advance Rental Pmts & Security Deposits | 309,790 |  | 282,378 |  |  |  |  |  |  |  |
Total Liabilities | 10,443,914 |  | 10,343,341 |  |  |  |  |  |  |  |
Partners' Capital | (3,226,760) |  | (2,986,053) |  |  |  |  |  |  |  |
Total Liabilities and Partners' Capital | $ 7,217,154 |  | $ 7,357,288 |  |  |  |  |  |  |  |
Partners' Capital %-NERA | 50.00% |  | 50.00% |  |  |  |  |  |  |  |
Distribution and Loss in Excess of investments in Unconsolidated Joint Ventures | $ (1,613,380) |  | $ (1,493,027) |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |  |  |  |
Total | 49 |  | 49 |  |  |  | 48 |  |  |  |
Units to be retained | property | 49 |  | 49 |  |  |  |  |  |  |  |
Hamilton Essex 81 | Residential buildings |  |  |  |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |  |  |  |
Total | property | 48 |  | 48 |  |  |  |  |  |  |  |
Hamilton Essex 81 | Commercial |  |  |  |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |  |  |  |
Total | property | 1 |  | 1 |  |  |  |  |  |  |  |
Hamilton Essex Development |  |  |  |  |  |  |  |  |  |  |
ASSETS |  |  |  |  |  |  |  |  |  |  |
Rental Properties | $ 2,584,435 |  | $ 2,586,925 |  |  |  |  |  |  |  |
Cash & Cash Equivalents | 60,182 |  | 113,595 |  |  |  |  |  |  |  |
Rent Receivable | 80,184 |  | 75,159 |  |  |  |  |  |  |  |
Prepaid Expenses & Other Assets | 50,175 |  | 56,859 |  |  |  |  |  |  |  |
Total Assets | 2,774,976 |  | 2,832,538 |  |  |  |  |  |  |  |
LIABILITIES AND PARTNERS' CAPITAL |  |  |  |  |  |  |  |  |  |  |
Accounts Payable & Accrued Expense | 1,500 |  | 1,713 |  |  |  |  |  |  |  |
Total Liabilities | 1,500 |  | 1,713 |  |  |  |  |  |  |  |
Partners' Capital | 2,773,476 |  | 2,830,825 |  |  |  |  |  |  |  |
Total Liabilities and Partners' Capital | $ 2,774,976 |  | $ 2,832,538 |  |  |  |  |  |  |  |
Partners' Capital %-NERA | 50.00% |  | 50.00% |  |  |  |  |  |  |  |
Investment in Unconsolidated Joint Ventures | $ 1,386,738 |  | $ 1,415,411 |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |  |  |  |
Total | property | 1 |  | 1 |  |  |  |  |  |  |  |
Units to be retained | property | 1 |  | 1 |  |  |  |  |  |  |  |
Hamilton Essex Development | Commercial |  |  |  |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |  |  |  |
Total | property | 1 |  | 1 |  |  |  |  |  |  |  |
345 Franklin |  |  |  |  |  |  |  |  |  |  |
ASSETS |  |  |  |  |  |  |  |  |  |  |
Rental Properties | $ 4,650,472 |  | $ 4,897,693 |  |  |  |  |  |  |  |
Cash & Cash Equivalents | 374,750 |  | 217,415 |  |  |  |  |  |  |  |
Rent Receivable |  |  | 3,531 |  |  |  |  |  |  |  |
Real Estate Tax Escrows | 23,412 |  | 34,630 |  |  |  |  |  |  |  |
Prepaid Expenses & Other Assets | 104,393 |  | 118,903 |  |  |  |  |  |  |  |
Total Assets | 5,153,027 |  | 5,272,172 |  |  |  |  |  |  |  |
LIABILITIES AND PARTNERS' CAPITAL |  |  |  |  |  |  |  |  |  |  |
Mortgage Notes Payable | 8,565,993 |  | 8,785,710 |  |  |  |  |  |  |  |
Accounts Payable & Accrued Expense | 124,185 |  | 64,101 |  |  |  |  |  |  |  |
Advance Rental Pmts & Security Deposits | 335,465 |  | 303,449 |  |  |  |  |  |  |  |
Total Liabilities | 9,025,643 |  | 9,153,260 |  |  |  |  |  |  |  |
Partners' Capital | (3,872,616) |  | (3,881,088) |  |  |  |  |  |  |  |
Total Liabilities and Partners' Capital | $ 5,153,027 |  | $ 5,272,172 |  |  |  |  |  |  |  |
Partners' Capital %-NERA | 50.00% |  | 50.00% |  |  |  |  |  |  |  |
Distribution and Loss in Excess of investments in Unconsolidated Joint Ventures | $ (1,936,308) |  | $ (1,940,544) |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |  |  |  |
Total | 40 |  | 40 |  |  |  |  |  |  |  | 40
Units to be retained | property | 40 |  | 40 |  |  |  |  |  |  |  |
345 Franklin | Residential buildings |  |  |  |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |  |  |  |
Total | property | 40 |  | 40 |  |  |  |  |  |  |  |
Hamilton 1025 |  |  |  |  |  |  |  |  |  |  |
ASSETS |  |  |  |  |  |  |  |  |  |  |
Rental Properties | $ 76,659 |  | $ 79,923 |  |  |  |  |  |  |  |
Cash & Cash Equivalents | 16,853 |  | 13,122 |  |  |  |  |  |  |  |
Rent Receivable | 4,931 |  | 4,898 |  |  |  |  |  |  |  |
Prepaid Expenses & Other Assets | 1,049 |  | 630 |  |  |  |  |  |  |  |
Total Assets | 99,492 |  | 98,573 |  |  |  |  |  |  |  |
LIABILITIES AND PARTNERS' CAPITAL |  |  |  |  |  |  |  |  |  |  |
Accounts Payable & Accrued Expense | 2,660 |  | 2,064 |  |  |  |  |  |  |  |
Total Liabilities | 2,660 |  | 2,064 |  |  |  |  |  |  |  |
Partners' Capital | 96,832 |  | 96,509 |  |  |  |  |  |  |  |
Total Liabilities and Partners' Capital | $ 99,492 |  | $ 98,573 |  |  |  |  |  |  |  |
Partners' Capital %-NERA | 50.00% |  | 50.00% |  |  |  |  |  |  |  |
Investment in Unconsolidated Joint Ventures | $ 48,416 |  | $ 48,254 |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |  |  |  |
Total | 176 |  | 176 |  |  |  |  | 176 |  |  |
Units to be retained | 1 |  | 1 |  |  |  |  | (49) |  |  |
Total number of units sold | property | 175 |  | 175 |  |  |  |  |  |  |  |
Hamilton 1025 | Residential buildings |  |  |  |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |  |  |  |
Total | property | 175 |  | 175 |  |  |  |  |  |  |  |
Hamilton 1025 | Commercial |  |  |  |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |  |  |  |
Total | property | 1 |  | 1 |  |  |  |  |  |  |  |
Hamilton Minuteman |  |  |  |  |  |  |  |  |  |  |
ASSETS |  |  |  |  |  |  |  |  |  |  |
Rental Properties | $ 4,324,746 |  | $ 4,581,892 |  |  |  |  |  |  |  |
Cash & Cash Equivalents | 251,310 |  | 252,822 |  |  |  |  |  |  |  |
Rent Receivable | 2,589 |  | 16,493 |  |  |  |  |  |  |  |
Real Estate Tax Escrows | 43,542 |  | 29,447 |  |  |  |  |  |  |  |
Prepaid Expenses & Other Assets | 42,306 |  | 26,635 |  |  |  |  |  |  |  |
Total Assets | 4,664,493 |  | 4,907,289 |  |  |  |  |  |  |  |
LIABILITIES AND PARTNERS' CAPITAL |  |  |  |  |  |  |  |  |  |  |
Mortgage Notes Payable | 5,932,827 |  | 5,924,643 |  |  |  |  |  |  |  |
Accounts Payable & Accrued Expense | 74,550 |  | 53,140 |  |  |  |  |  |  |  |
Advance Rental Pmts & Security Deposits | 192,370 |  | 195,781 |  |  |  |  |  |  |  |
Total Liabilities | 6,199,747 |  | 6,173,564 |  |  |  |  |  |  |  |
Partners' Capital | (1,535,254) |  | (1,266,275) |  |  |  |  |  |  |  |
Total Liabilities and Partners' Capital | $ 4,664,493 |  | $ 4,907,289 |  |  |  |  |  |  |  |
Partners' Capital %-NERA | 50.00% |  | 50.00% |  |  |  |  |  |  |  |
Distribution and Loss in Excess of investments in Unconsolidated Joint Ventures | $ (767,627) |  | $ (633,138) |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |  |  |  |
Total | 42 |  | 42 |  |  |  |  |  | 42 |  |
Units to be retained | property | 42 |  | 42 |  |  |  |  |  |  |  |
Hamilton Minuteman | Residential buildings |  |  |  |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |  |  |  |
Total | property | 42 |  | 42 |  |  |  |  |  |  |  |
Hamilton on Main Apts |  |  |  |  |  |  |  |  |  |  |
ASSETS |  |  |  |  |  |  |  |  |  |  |
Rental Properties | $ 12,985,301 |  | $ 13,896,435 |  |  |  |  |  |  |  |
Cash & Cash Equivalents | 611,236 |  | 808,436 |  |  |  |  |  |  |  |
Rent Receivable | 9,044 |  | 29,724 |  |  |  |  |  |  |  |
Real Estate Tax Escrows | 139,831 |  | 70,172 |  |  |  |  |  |  |  |
Prepaid Expenses & Other Assets | 248,929 |  | 176,283 |  |  |  |  |  |  |  |
Total Assets | 13,994,341 |  | 14,981,050 |  |  |  |  |  |  |  |
LIABILITIES AND PARTNERS' CAPITAL |  |  |  |  |  |  |  |  |  |  |
Mortgage Notes Payable | 16,881,274 |  | 16,865,222 |  |  |  |  |  |  |  |
Accounts Payable & Accrued Expense | 196,773 |  | 168,858 |  |  |  |  |  |  |  |
Advance Rental Pmts & Security Deposits | 515,070 |  | 455,979 |  |  |  |  |  |  |  |
Total Liabilities | 17,593,117 |  | 17,490,059 |  |  |  |  |  |  |  |
Partners' Capital | (3,598,776) |  | (2,509,009) |  |  |  |  |  |  |  |
Total Liabilities and Partners' Capital | $ 13,994,341 |  | $ 14,981,050 |  |  |  |  |  |  |  |
Partners' Capital %-NERA | 50.00% |  | 50.00% |  |  |  |  |  |  |  |
Distribution and Loss in Excess of investments in Unconsolidated Joint Ventures | $ (1,799,388) |  | $ (1,254,505) |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |  |  |  |
Total | 148 |  | 148 |  |  |  |  |  |  | 280 |
Units to be retained | property | 148 |  | 148 |  |  |  |  |  |  |  |
Hamilton on Main Apts | Residential buildings |  |  |  |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |  |  |  |
Total | property | 148 |  | 148 |  |  |  |  |  |  |  |
Dexter Park |  |  |  |  |  |  |  |  |  |  |
ASSETS |  |  |  |  |  |  |  |  |  |  |
Rental Properties | $ 74,525,027 |  | $ 77,385,213 |  |  |  |  |  |  |  |
Cash & Cash Equivalents | 2,088,673 |  | 1,890,452 |  |  |  |  |  |  |  |
Rent Receivable | 140,146 |  | 136,897 |  |  |  |  |  |  |  |
Prepaid Expenses & Other Assets | 2,635,666 |  | 2,792,920 |  |  |  |  |  |  |  |
Total Assets | 79,389,512 |  | 82,205,482 |  |  |  |  |  |  |  |
LIABILITIES AND PARTNERS' CAPITAL |  |  |  |  |  |  |  |  |  |  |
Mortgage Notes Payable | 124,682,270 |  | 124,617,647 |  | $ 82,000,000 |  |  |  |  |  |
Accounts Payable & Accrued Expense | 816,401 |  | 702,566 |  |  |  |  |  |  |  |
Advance Rental Pmts & Security Deposits | 3,506,661 |  | 3,825,600 |  |  |  |  |  |  |  |
Total Liabilities | 129,005,332 |  | 129,145,813 |  |  |  |  |  |  |  |
Partners' Capital | (49,615,820) |  | (46,940,331) |  |  |  |  |  |  |  |
Total Liabilities and Partners' Capital | $ 79,389,512 |  | $ 82,205,482 |  |  |  |  |  |  |  |
Partners' Capital %-NERA | 40.00% |  | 40.00% |  |  |  |  |  |  |  |
Distribution and Loss in Excess of investments in Unconsolidated Joint Ventures | $ (19,846,328) |  | $ (18,776,132) |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |  |  |  |
Total | 409 |  | 409 |  |  | 409 |  |  |  |  |
Units to be retained | property | 409 |  | 409 |  |  |  |  |  |  |  |
Dexter Park | Residential buildings |  |  |  |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |  |  |  |
Total | property | 409 |  | 409 |  |  |  |  |  |  |  |

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