I don’t disagree with your premise at all, just the method. I don’t think it’s wise to advertise to the outer world that you have cash. It’s asking for a rip-off, kinda like posting on your local listserv that you’ll be away for the winter. Maybe it doesn’t happen in your neighborhood, but in mine, there are those who go round offering to do odd jobs, and in the process they’re casing your place. This parent is somewhat vulnerable, tending to someone even more vulnerable, and in need for help to feel safe. My suggestion to ask people in the community who can recommend someone reliable to plow for them seems less likely to bring in someone bent on crime. My neighbor (who lives alone) called on someone who advertised roof-raking (not a local, but from the next state just over the border); at her invitation, he showed up to talk specifics and view her roof. She found his manner inconsistent with his supposed purpose (he barely looked at her roof) and had an uneasy feeling about him when he could not come up with a fee or a reference or say he was insured. After he left, she asked our local law enforcement if they recognized his name and learned that there’s an outstanding warrant for him in his home state which can’t be acted upon unless he commits a crime here. She did not hire him. Best bet for someone to work for you is to ask someone reliable who can recommend someone who is reliable. It’s also a good way to get to know your own community.