When Massachusetts standard LIHTC is allocated with respect to a qualified Massachusetts project, such credit may not be claimed by any taxpayer with respect to any building in such project unless and until:
Before the end of the first taxable year in which standard LIHTC is claimed, the taxpayer must record a regulatory agreement in a form prescribed by the department with respect to such project. In the case of a donation LIHTC, a regulatory agreement in a form prescribed by the department must be recorded at the time of the qualified donation.
760 CMR, § 54.08