No, both of them live in their homes. Mine lives about seven hours from me, is VERY independent, has a very full life, and is financially savvy but doesn't have enough income to live on, so one of us pays her utilities, one pays her home and cell phone and cable bill, one sends her a set amount each month and the other one pays for things like a new water heater, etc. She has had a couple of surgeries and has to have someone there until she's back on her feet again. Another sister and I take turns doing that. She has firm plans to live to one hundred and I believe she will. When and if the time comes that she HAS to go into some sort of assisted living, I expect a huge fight on our hands. She says she will not come to live with us and to just bury her in the front yard - lol.
His mother also still lives in her home and we have a lady who comes in a couple days a week to clean and drive her to doctor appointments. Other than that, she doesn't leave the house. She also has neighbors and friends who are very helpful. She's almost blind, uses a walker and only takes nutrition through a stomach tube but gets around the house fine. He is her financial fiduciary and takes care of her bills and handles her income. She has more than adequate income to live on, thank goodness. She DOESN'T want to live to be a hundred, but she probably will. He talks to her daily and we go up there whenever needed (a 12-hour drive). Like my mom, she refuses to consider moving to an assisted living facility, although she really needs to.
We both have power of attorney so we can handle anything that arises.