Cal. Health & Safety Code § 37622

The local agency may employ or contract for any engineering, architectural, accounting, collection, economic feasibility, or other services in connection with the servicing of loans made to participating parties, which may be necessary or useful in the judgment of the local agency for the successful financing of the historical rehabilitation. The local agency may pay the reasonable costs of consulting engineers, architects, accountants, construction experts, and economic feasibility experts, if, in the judgment of the local agency, the services are necessary or useful to the successful financing of any historical rehabilitation. The local agency may employ, contract for, and fix the compensation of financing consultants, bond counsel, and other advisers as may be necessary or useful in its judgment to provide for the issuance and sale of any bonds or bond anticipation notes of the local agency.