24 C.F.R. § 27.3
The definitions contained in the Act (at 12 U.S.C. 3702 ) shall apply to this subpart, in addition to and as further clarified by the following definitions. As used in this subpart:
General Counsel means the General Counsel of the Department of Housing and Urban Development;
Multifamily mortgage does not include a mortgage covering a property on which there is located a one- to four-family residence, except when the one- to four-family residence is subject to a mortgage pursuant to section 202 of the Housing Act of 1959 ( 12 U.S.C. 1701q ), or section 811 ( 42 U.S.C. 8013 ) of the National Affordable Housing Act. The definition of multifamily mortgage also includes a mortgage taken by the Secretary in connection with the previous sale of the project by the Secretary (purchase money mortgage).
24 C.F.R. § 27.3