payment of taxes, insurance, prior liens, expenses necessary to make fiscal adjustments in connection with the application, and transmittal of collections or necessary to obtain credit reports on applicants or borrowers, expenses for necessary services, including construction inspections, commercial appraisals, loan servicing, consulting business advisory or other commercial and technical services, and other program services, and other expenses and advances authorized in
section 907 of this title in connection with insured loans. Such items may be paid in connection with guaranteed loans after or in connection with the acquisition of such loans or security thereof after default, to the extent determined to be necessary to protect the interest of the Government, or in connection with any other activity authorized in this chapter;