; (6) shall agree to use an eligible property purchased with assistance provided under this section as the applicant’s primary residence for not less than the 3-year period beginning on the date of such purchase; and (7) shall be employed and earning sufficient income to repay a mortgage loan, as determined by the Secretary and the Director for the purposes of this program. (d) Types of assistance (1) In general A program established under this section may provide for any one or more of the following options: (A) A discount on the appraised value of an eligible property. (B) Flexibility in underwriting standards related to the purchase of eligible properties for mortgages insured under title II of the National Housing Act ( 12 U.S.C. 1707 et seq.) or owned or guaranteed by the Federal National Mortgage Association or the Federal Home Loan Mortgage Corporation. (C) The development of new mortgage products specifically targeted to eligible applicants. (D) Any other assistance that the Secretary and Director jointly deem appropriate. (2) Repayment integration A program established under this section shall provide for the development of a program that will use actuarial information to determine how the repayment of loans described in subsection (c)(1) may be integrated into a mortgage repayment schedule to allow an eligible applicant to accumulate equity in the eligible property, including by reason of meeting the eligible applicant’s obligations under such student loan. (3) Collaboration In providing assistance described under paragraph (1), the Secretary and the Director may collaborate with— (A) community banks having less than $10,000,000,000 in total assets; (B) credit unions (as defined in section 101 of the Federal Credit Union Act); (C) and local fair housing organizations