My one motorhome is for sale and the potential buyer hired an inspector to go over it. He was here for FIVE hours checking everything. The worst he found was an expired fire extinguisher and propane detector (still working but out of date) and the roof needed recaulked.
What I wished I had done was inquired about procedures. I had just had the carpet cleaned and he rolled up all my throw rugs and walked on the beige carpet the entire 5 hours. Then when he examined the engine through the floor in the bedroom, he placed his grimy hand on the white mattress to get back up off the floor. Grrrrr. I would have insisted that while in the coach he wear "footies" and place barriers where he intended to touch, just like the guys at the service centers do. Very unprofessional.
He took a small sample of engine oil for analysis, but it was okay.
Dale