I used to do OSHA abatements. There are some companies that are just begging to be fined. I worked a job at a large auto-parts factory where the maintenance department moved around lines and perimeter guarding whenever they needed to without any supervision. Lockout-Tagout was a joke, most machines had 6-10 discrete power sources and nobody ever locked out. This all changed when a 3rd shift maintenance man got disemboweled and had part of his hand crushed by an industrial robot overnight in an otherwise empty plant and nearly died trying to get to the only other employee- the night watchman- for help. He survived but he had a heckuva scar.
That said, using an agency whose intended purpose was to improve workplace conditions instead as a revenue generation source if plain wrong, on the same level as cops with speed traps wrong.
The small mower company, just set yourself up as a simple LLC, when OSHA screws you over, have another spare LLC ready to buy your assets and close shop.