Maryland Housing and Community Development Section 7-307
§ 7-307.
  The person responsible for the closing of a real estate transaction shall file with the Department a written statement, made and signed by the owner under the penalties of perjury, that the transaction complies with this title, if the transaction includes:
    (1)   a sale or conveyance of an assisted project or the real property associated with it, and:
      (i)   is a protected action; or
      (ii)   occurred within 10 years after a protected action for which the owner failed to comply with this title; or
    (2)   a release of:
      (i)   a mortgage secured by an assisted project; or
      (ii)   a regulatory agreement or other document executed in connection with the mortgage that restricts the income levels of the tenants or the rental rates of the assisted project.