need some motor home advice

The skylights if it has them, roof leaks, soft spots in the floor especially around the sink(s) and shower and toilet areas. Check the black and grey storage tanks for cracks and fresh water tank and pump. People have slept and eat and what ever else in these, so cleanliness is a big factor....If you are going to park this on your property you will have to think about the waste water, black and grey.