The Secretary may make grants to or enter into contracts with public or private nonprofit corporations, agencies, institutions, organizations, Indian tribes, and other associations approved by him, to pay part or all of the cost of developing, conducting, administering or coordinating effective and comprehensive programs of technical and supervisory assistance which will aid needy low-income individuals and families in benefiting from Federal, State, and local housing programs in rural areas. In processing applications for such grants or contracts made by private nonprofit corporations, agencies, institutions, organizations, and other associations, the Secretary shall give preference to those which are sponsored (including assistance to the applicant in processing the application, implementing the technical assistance program, and carrying out the obligations of the grant or contract) by a State, county, municipality, or other governmental entity or public body.