I'm kind of in a similar pickle in as much as a plane I take care of is up
for sale. To whom do I owe my loyalty? If I point out every little defect,
the owner who I've known for a fair amount of time will say "That S.O.B.
stuck it to me I thought he was my friend"

On the other hand if I don't volunteer some defect, then the new owner will
say "That S.O.B. stuck it to me I thought he was an honest mechanic"

I handle it by telling the prospective buyer to get a third party.

Cheers:

paul