Not to totally pile on this guy...but I'm nearing 60 myself, work full-time, and am completely capable of replacing a toilet, a leaky hose to a toilet, and drywall. (In fact, recently replaced the drywall in one bedroom after fixing a leak.) Why is Mom sitting around waiting for neighbors to do lousy jobs instead of doing it herself? Especially given the fact she can't depend on her son, she should have learned these skills decades ago.
Kevin, if you come back, maybe you should spend a few bucks on books for your Mom..."Dare to Repair," and "Dare to Repair, Replace & Renovate." They'll be more good to her than you are...