I have explained before here that the only sensible way to do this, at least in Texas, is to get a home equity loan secured by the house. The proceeds of this loan are community property, unless "one spouse waives their right to the community share of it, thereby making these proceeds exclusively the seperate property of the recipient". The way you sell this to her is by explaining that you want to spend this money on a good vacation together with her, and invest the rest so that "we can get a much better income", and that you don't want her to be responsible for any repayments of the loan. Think of the one place where she has always wanted to go.
All of this will sound great to her, and she won't be able to sign fast enough. You have now effectively converted all of the equity in your house into your own seperate property. The next thing you have to do is to PROTECT these assets from her and all other creditors. I would buy the specific gold coins (American quarter Eagles) which do not carry any reporting requirements to anyone, and U.S. solid silver dimes. Soon such things will be freely exchanged, as normal money, by every merchant. I would invest the remainder in untouchable Swiss annuities. Annuities are always untouchable, but Swiss annuities have added advantages. Spend any other money you may come into, on good times, as soon as you get it.
At some point you will receive Social Security benefits, and these are immune to any seizure or judgement of any court in the land, and are seperate property. You will also qualify for medicade--and long term care--after the waiting period has expired. If you had to go into long term care you might have to surrender the annuity payments, for the time that you are in the nursing home, but they would only be a fraction of the nursing home cost, anyway.