Yes and yes, but no I never have. Generally I would like to think majority of people use agents that others have used and recommend or they are friends with. As for a lawyer the few times I needed one was either family or research online.

Idk anyone who has seen a billboard and said oh yeah thats my best option, im gonna call them. Outside of movies.

Do you not have agents over there? We can also do this all ourselves, but the paperwork and rules normally make it something you don’t want to do yourself, same with lawyers.