; and (B) consult with the FHA to coordinate and facilitate a prompt and reasonable transition. (e) Continuation of Services The FHA may use the services of employees and other personnel of the Department of Housing and Urban Development relating to the functions transferred under section 554, on a reimbursable basis, to perform functions which have been transferred to the FHA for such time as is reasonable to facilitate the orderly transfer of functions pursuant to any other provision of this title or any amendment made by this title to any other provision of law. (f) Savings Provisions (1) Existing rights, duties, and obligations not affected Subsection (a) shall not affect the validity of any right, duty, or obligation of the United States, the Secretary of Housing and Urban Development, or any other person, which— (A) arises under— (i) the National Housing Act; or (ii) any other provision of law applicable with respect to the functions of the Department of Housing and Urban Development transferred under section 554