We over saw a major project after the Texas freeze after one of our clients asked us to help a friend. Things were bad in Texas from the freeze, then the labor and material shortages. Additionally, the closest hotel that had openings was two hours away. Plus, they needed there various pets to be taken care of..So, they had a motorhome so we suggested they allow us to rent it from them, and save the drive and other expenses. It would also, be protected under our 2mil insurance policy. We compared rental rates which were over $595/day. We billed for $449/day. The insurance company wants supporting doc's. Can the agreement from the owners to us serve to fill the bill?