Well, there's a bit of truth in that - that A&P in particular may not hand out his green stamp of approval on a Condition Inspection for repairs not completed by another A&P or the guy with the repairman's certificate.During the inspection both the A+P and the builder mentioned to me that I would need to have an A+P or the builder address the issues.
A&P's are like barbers and plumbers.....everybody's always looking for a good one they can trust.
LOL, I was talking to a young A&P a few weeks ago that told me welding isn't allowed on fuselages, which is why no aircraft have them made that way. Apparently they didn't cover things like the Aeronica series of aircraft in school....and he started chuckling when he realized how wrong his instructor was.