In sections 47-10.2-01 through 47-10.2-03, unless the context or subject matter otherwise requires:
1. "Borrower" means the obligor under a residential mortgage held by a mortgagee.
2. "Servicer" means a person or entity maintaining an escrow account for a residential mortgagee.
3. "Surplus amount" means from the annual escrow account analysis, any amount greater than or equal to fifty dollars, excluding any escrow cushion required by the servicer.