Or I guess, it depends on how deep your wallet is for some. Here is an interesting post from William Wynne about days gone by and signing off on airworthiness applications. You can read the full post on his fly corvair site. It is in the January 13 section. Search for the words "hired gun" and that will take you to the referenced section.
I quote from it......"While it isn?t right, keep in mind that there is absolutely nothing illegal about professionally building planes or paying magazine editors to write lies about them. The only actual crime in the system was the owners signing the FAA airworthyness application and claiming it wasn?t built for hire. The form said the fine was up to $10K for making a false statement. When you understand what a trivial amount of money that was to these people you understand why they all signed it. Plus, in all the years of thousands of people lying through their teeth to DARs, no one ever got turned in. Part of the reason for this was the DARs made so much money, they of all people were never going to blow the whistle on anyone. The only thing that ever slowed the system down was Mooney, who couldn?t sell planes, started making a lot of noise about the FAA not enforcing the rules. The got an advisory circular published, but all Mooney had on their side was being right, they didn?t bring any pay off money, and that was what the system operated on.".................