With all respect, I had a terriable survey done by a SAMS member. He ended up as an officer of SAMS. He was teaching at a famed school, he was a "Boat US surveyor" etc. He missed muiltiple problems, including that the boat had been sunk, poorly repaired, that a water tank had been burst and wrapped with epoxy, and epoxied, that a fuel tank was leaking and a beach towel stuffed under it (he found the beach towel when I called him back a week later). The Stb strut had been driven thru the boat bottom and repaired with just a piece of plywood inside the hull with some glass over and under, there was even a cut out where the repair was done, and stepped down, this was obvious on even his photos. There were multiple other clues.
One of my friends who is a yacht builder was aboard for five minutes and asked "has this boat been sunk?"--it was that obvious.
I had asked a lot of questions, and he or the owner had a glib answer for each one. I had trusted this surveyor--and I made a big mistake by doing this. I talked with the President of SAMS and the Ethic's chairman for SAMS, basically the insurance covered their members if they were sued. Despite my having another survey which showed all of these defects (I found who had made a bid previously and had withdraw for cause of a bad survey--and obtained that survey). Despite having very good photo documentation of all of the problems, SAMS would do nothing unless I won in a court of law. I consulted an attorney. The SAMS surveyor had no attatchable assets, and I was told it was not worth persuing legal action. The repairs cost me $30,000 by the time I had the boat fixed. I had to disclose the damage and what was done to repair it when I sold the boat. That was 9 years ago--I don't know if things have improved in SAMS or not, but I learned an expensive lesson!
I had surveyed my own sailboats in the past, with the help of a naval architect, but this was my first large power boat (42 foot trawler). So, I now have a surveyor I can fall back on if I need help (means flying him in, but worth it if necessary)--and do my own surveys again.