In connection with property on which it holds a mortgage, the Administration may: foreclose on the property; begin an action to protect or enforce a right conferred on the Administration by law or any agreement; bid for and purchase the property at a foreclosure or other sale; and acquire and take possession of the property. In an action under this subsection, the Administration may: complete, administer, and pay the principal of and interest on an obligation incurred in connection with the property; and dispose of and otherwise deal with the property, so as to protect the interests of the Administration. This subsection does not apply to a lien held in connection with a public purpose project. The Administration may not lend money on the security of property unless the lien on the property is superior to all other liens, except for: a lien for taxes owed to the State or a political subdivision; or an earlier mortgage lien. At public or private sale and with or without public bidding, the Administration may sell a mortgage or other obligation that the Administration holds. The Administration may retain the servicing rights and charge servicing fees for any mortgage or other obligation the Administration sells.