All the cities and counties by me make you get an affidavit signed and recorded by a plumber, electrician, engineer, etc (depending on improvement). So you can find unscrupulous “professionals” that will sign something just based on your testimony for relatively cheap. I know a few people that will do that but I’d never recommend them, cause that’d be a abdication of my professional duty IMO. Classic saying in my field is “there are engineers that’d stamp a dog turd for a buck”