The city or town treasurer may invest the monies in the manner authorized in section 55 and any interest earned thereon shall be credited to and become part of the fund.
The city or town treasurer shall annually certify, not later than June 30, in writing to the fund administrator and auditor or similar officer in cities or the town accountant in towns having a town accountant, the principal and interest due in the next fiscal year on any bonds issued under clause (3C) of the first paragraph of section 7 and not otherwise provided for, and the amount certified shall be reserved for payment of that debt service without further appropriation. Loans may be made from the fund by the fund administrator without further appropriation, subject to this section; provided, however, that no loans shall be made or liabilities incurred in excess of the unreserved fund balance and unless approved in accordance with sections 52 and 56 of chapter 41.
A betterment loan agreement between an owner and a city or town under this section shall not be considered a breach of limitation or prohibition contained in a note, mortgage or contract on the transfer of an interest in property.
Notwithstanding any provision of chapter 183A to the contrary, the organization of unit owners of a condominium may enter into a betterment loan agreement under this section to finance an energy conservation and renewable energy project, provided that the project comprises part of the common areas and facilities; provided, however, that section 18 of said chapter 183A shall not apply to any improvements undertaken pursuant to an agreement entered into under this section. Such agreement shall: (i) be approved by a majority of the unit owners benefited by the project; (ii) include an identification of the units and unit owners subject to the agreement and the percentages, as set forth in the master deed, of the undivided interests of the respective units in the common area and facilities; and (iii) include a statement by an officer or trustee of the organization of unit owners certifying that the required number of unit owners have approved the agreement. As between the affected unit owners and the city or town, the certification shall be conclusive evidence of the authority of the organization of unit owners to enter into the agreement. A notice of the agreement shall be recorded as a betterment in the registry of deeds or registry district of the land court wherein the master deed is recorded and shall be otherwise subject to chapter 80 as provided in this section. The assessment under the agreement shall be charged or assessed directly to the benefited unit owners and if unpaid shall be added to the annual tax bill for their units in accordance with section 13 of said chapter 80. The allocable share of the assessment, prorated on the basis of the percentage interests of the benefited units in the common areas and facilities, shall attach as a lien only to the units identified in the recorded notice and benefited by the project and the owners of those units shall also be personally liable for their allocable share of the assessment as provided for in this section. For the purposes of this paragraph, the terms "common areas and facilities", "common expenses", "condominium", "master deed", "organization of unit owners", "units" and "unit owners" shall have the same meanings as ascribed to them in section 1 of said chapter 183A.
Mass. Gen. Laws ch. 44, § 53E 3/4