You can convert the unused portion of your credit line to cash at any time. If you owe more on the Reverse Mortgage then the value of your property, and need to move someplace else, contact the Lender and tell them you'd like to give them the Title, in lieu of foreclosure.
**All above answers are provided as general information only. No warranty is made regarding the fitness or accuracy of the information provided in this answer. You should seek advice from a licensed CPA, attorney or CERTIFIED FINANCIAL PLANNER™ as to your unique financial situation.