do i have to pay interest on unused money from a reverse martgage

No.. interest accrues based on the outstanding balance, not your home's value or your credit line amount... Example: your home is worth $500K, you have a $250K line of credit, and you owe $100K.. your interest is based on the $100K balance. If you or someone you know is looking for financing options, feel free to contact me or pass along my information. 480-287-5714 WilliamAcres.com NMLS# 226347 / MKS Lending LLC DBA Trusted Lending Center, NMLS 1018196 / AZMB 1414920