Tex. Local Government Code § 394.040

(a) A housing finance corporation may make, contract to make, but is not required to make, and enter into advance commitments to make home mortgages originated, administered, and serviced by lending institutions. It may pay the reasonable value of services rendered under those contracts. It may acquire, contract to acquire, and enter into advance commitments to acquire, by assignment or other means, home mortgages owned by lending institutions at purchase prices and on other terms determined by the corporation or its agent.

(b) The corporation may require each lending institution from which home mortgages are proposed to be purchased or to which loans are made to submit evidence satisfactory to the corporation of the ability and intention of the lending institution to make home mortgages, and require the submission, within the time specified by the corporation for making disbursements for home mortgages, of evidence satisfactory to the corporation of the making of home mortgages and of the compliance with the standards and requirements established by the corporation under Section 394.041.

(c) The corporation may make loans to lending institutions under terms that, in addition to other provisions determined by the corporation, require:

(1) the institutions to use substantially all of the net proceeds of the loans, directly or indirectly, to make home mortgages in an aggregate principal amount substantially equal to the amount of the net proceeds; and

(2) the loans to be fully secured, to the extent not secured by home mortgages, in the same manner as deposits of public funds of the local government.