The Secretary shall give preference in approving mortgage insurance applications and in providing counseling services under this section (1) to families which are eligible for assistance payments under section
1715z of this title, (2) to families living in empowerment zones and enterprise communities (as those terms are defined in section
1393
(b) of title
26 who are eligible for homeownership assistance, and (3) to families living in public housing units, especially those families required to leave public housing because their incomes have risen beyond the maximum prescribed income limits, and families eligible for residence in public housing who have been displaced from federally assisted urban renewal areas.