; or (B) (i) the operating cost adjustment factor as a payment standard as provided under section 524 of the Multifamily Assisted Housing Reform and Affordability Act of 1997 ( 42 U.S.C. 1437 note). (3) Initial decoupled rent At the time of an agreement to extend the term of rental assistance contract under section 521, the initial rent shall established as conventional rents for comparable units by appraisal or market study. (4) Rural housing vouchers for maturing mortgages Residents of projects originally financed with a loan made or insured under section 514 or 515 that has matured shall be eligible for voucher assistance under section 542 if a rental assistance contract under section 521 is not extended beyond the term of the underlying loan made or insured under section 514 or 515. (g) Authority If the Secretary determines that additional voucher funds under section 542 are needed, funds for the revitalization program under this section may be used for those vouchers for any low-income household (including those not receiving rental assistance) residing in a property financed with a loan under this section that has been prepaid after September 30, 2005. (h) Multifamily housing transfer technical assistance (1) In general Under the program under this section, the Secretary may provide grants to qualified nonprofit organizations, public housing agencies, and tribal housing authorities to provide technical assistance, including financial and legal services, to borrowers under loans under this title for multifamily housing to facilitate the acquisition of such multifamily housing properties in areas where the Secretary determines there is a risk of loss of affordable housing. (2) Prohibition The Secretary shall not categorically exclude previously initiated acquisitions from the provision of technical assistance funding under this subsection. (i) Transfer of rental assistance After the loan or loans for a rental project originally financed under section 515 or both sections 514 and 516 have matured or have been