new member and first question....

My MIL is 70yo and has zero savings for retirement. She is widowed and receives social security. She owns her home, approx $400k net worth. She has 1 son. We want her to use the equity in her home to support herself and think the best way would be a RM. I'm just not sure about the fees, how RMs work or if there is a better option. We can help her with taxes and insurance if/when needed.

I've read several posts about RM but usually there is still money owed on the home. The other thought was open a HELOC and she can withdraw if/when its needed, but then she will have a payment. If she does get a RM would it wise to put some of the money into a ROTH IRA? Maybe it gains a nice little return, but I know that's not guaranteed..... We don't need the inheritance and want her to have the money now to hopefully enjoy life a little instead of worry. Any tips or suggestions would be greatly appreciated.

Any companies that are recommended for RM?