County housing authorities and regional housing authorities are specifically empowered and authorized to borrow money, accept grants and exercise their other powers to provide housing for farmers of low income. In connection with such projects, any such housing authority may enter into such leases or purchase agreements, accept such conveyances and rent or sell dwellings forming part of such projects to or for farmers of low income, as such housing authority deems necessary in order to assure the achievement of the objectives of this Housing Authorities Law. Such leases, agreements or conveyances may include such covenants as such housing authority deems appropriate regarding such dwellings and the tracts of land described in any such instrument, which covenants shall be deemed to run with the land where such housing authority deems it necessary and the parties to such instruments so stipulate. Nothing contained in this section shall be construed as limiting any other powers conferred by this Housing Authorities Law.