of 1949 (42 U.S.C. 1484(a)) is amended by inserting ???, or any nonprofit limited partnership in which the general partner is a nonprofit entity,??? after ???private nonprofit organization???.(e) OPTIONAL CONVERSION OF RENTAL ASSISTANCE PAYMENTS TO OPERATING SUBSIDY FOR MIGRANT FARMWORKER PROJECTS-(1) IN GENERAL- Section 521(a) of the Housing Act of 1949 (42 U.S.C. 1490(a)) is amended by adding a