If you write your own terms and conditions for a contract, I can almost guarantee that you will miss something that will end up costing "big bucks" . What is an example? Your business insurances` terms and conditions. Don`t have business insurance??? Don`t do dealership detailing because if (more correctly, WHEN) something goes wrong, YOU will be on the hook for payment to fix it. Electronics/Engine computers/Electrical are all good examples of things that may get damaged during a dealership vehicle "detail" that will cost you out-of-pocket expenses that you may not have factored in or accounted for in pricing to work for a dealership.
If you do still decide to detail for dealerships, do this AFTER the dealership inspection and check-off sheet of what is wrong or does not work on the vehicle. If you do it before, YOU may get blamed of a vehicle problem that already existed on the vehicle when you started detailing; again electrical gremlins and problems are a good example.
It`s unfortunate that detailers who are trying to make a buck get stuck this way, but the legality of even a simple "vehicle resell prep" (in dealership speak)will cost a detailer more than its worth to do this because they need to "cover there butts" and protect their financial interest. While this may not happen to all detailers, it is part of the cost of doing business in America. If you do not have business insurance and do work for someone else who is paying you, even in cash, you may be one of the unfortunate who experience this financial and legal debacle.
Laugh as you will, this is one reason many dealerships "outsource" their vehicle resale prep work: they pass this legal liability on to the person or company it was outsourced to. If it was done internally as part of the dealership, THEY would be on the hook for any problems that occurred. Judging by the "workmanship" of internal dealership detailing/vehicle prep departments that get posted here in forum on a frequent basis, I can understand why. When a knowledgeable customer complains that the vehicle they just bought has swirls or other detailing miscues upon their close inspection, who is going to pay for their "remediation and correction" (legal contract speak)?? If its done by the dealership, it`s the dealer; if it`s done by you (the outsourcer), then it`s you.
What is REALLY unfortunate is that there are very good directly employed dealership detailers who are not given sufficient time to do their job correctly because time is money and "get it done" and "its good enough" are just that for 90% of the customers purchasing vehicles at dealerships. Owners and management who make such department policies and the equipment and car-care products that they are forced to use, unfortunately give many dealership detailers a bad rap that they may not deserve. They do the best they can with what they have and it`s a job they dutifully perform, albeit not to Autopian (or my) "standards".