Risk associated with inspections at repair shops:

Today’s vehicles are so complex that most repair shops (and mechanics) specialize only a couple of automotive repair areas. Imagine taking a car you want to buy first to a transmission repair shop to get the transmission inspected, then to a heating/AC repair shop, then to a engine diagnostic shop, then to a brake shop, then to a frame specialist shop, and so on... until you had every component and system checked. Sounds silly, yet people take a car into these types of repair shops expecting to get full inspection on every component and system.

Full service repair shops and/or dealership repair shops, which have the overall expertise, have no incentive to pull their best mechanic (ASE Master Technician) from a high paying repair job to perform a pre-purchase inspection. You will probably get a junior mechanic to look for things he has been trained to repair. Also, most mechanical repair shops do not have technicians certified on structural frame systems to inspect for frame damage or alterations to the frame components.

In addition, there is a conflict of interest for repair shops that find problems with a vehicle, then want to charge for the repairs.

The best professional unbiased inspection inspection you can get is by Certified Master Technician with  certifications in Frame Analysis, and has no conflict of interest to repair the vehicle.

The #1 reason vehicles with existing problems are purchased is the buyers' inability to determine the current condition before purchase.