I'm sorry for your loss, Fitz.
I hope you are able to work out something for your grandmother.
And I hate to do this, but it needs to be said. If you haven't, you need to sit down and get things arranged should you (or your spouse/SO) suffer an untimely demise. Then if you have elderly parents and/or grandparents sit down with them and make sure they have a plan in place. It's a simple fact that no one will live forever. Having a plan in place makes that transition less painful for those left behind.