Guessing from time of post and “social security” this is US west coast. California appears to be one of the most supportive states re criminal records, with programs and favorable rules.

At this moment of working from home, consider a temporary housing situation in a less expensive part of the Central Valley, connect him up with services, get him settled in. Then, when things open up again, your friend could consider opportunities on the coast and still be close enough to help her father if needed.

There are many non-profits involved with housing, some specializing in disabilities (dementia should qualify), and able to provide info and referrals. They can guide you through and into government programs. It’s definitely a time of crisis, and they will be overwhelmed right now, but be patient and they can and will be able to help.

Compassion feels right. You have to be able to look at yourself in a mirror. But you shouldn’t have to give up your dreams either. The middle path is hard, it can drag you down, but it can also give you strength and ideas.

TLDR: Take interim steps, seek assistance, look for a path.