Not sure if it's legal but I don't think anyone would bother if you kept it to yourself
The closest airport port is in New Hudson. I think it's southeast Oakland??
Yes, if you had a michigan drone certificate and if the area you're flying in is at least 5 miles from any airport. I don't think that area is within 5 miles of Brighton Airport but check if milford has one (that might be closer than 5 miles). Be very careful.
Thanks! Your answer is awaiting moderation.