The mortgagee’s share of a property’s or stock’s net appreciated value shall be payable upon sale or transfer (as defined by the Secretary) of the property or stock or payment in full of the mortgage, whichever occurs first. For purposes of this section, the term “net appreciated value” means the amount by which the sales price of the property or stock (less the mortgagor’s selling costs) exceeds the value of the property or stock at the time the commitment to insure is issued (with adjustments for capital improvements stipulated in the loan contract). If there has been no sale or transfer at the time the mortgagee’s share of net appreciated value becomes payable, the sales price for purposes of this section shall be determined by means of an appraisal conducted in accordance with procedures approved by the Secretary and provided for in the mortgage.
In the event of a default, the mortgagee shall be entitled to receive the benefits of insurance in accordance with section 1710(a) of this title, but such insurance benefits shall not include the mortgagee’s share of net appreciated value. The term “original principal obligation of the mortgage” as used in section 1710 of this title shall not include the mortgagee’s share of net appreciated value.
Mortgages insured pursuant to this section which contain provisions for sharing appreciation or which otherwise require or permit increases in the outstanding loan balance which are authorized under this section or under applicable regulations shall not be subject to any State constitution, statute, court decree, common law, rule, or public policy limiting or prohibiting increases in the outstanding loan balance after execution of the mortgage.