Yep. And a lot of agents will already have that letter written and submit it with their contracting. After a few carrier appointments, they know the drill.In my experience if an agent has some bad stuff but discloses it he's worth contracting. If he discloses nothing and stuff turns up, you don't want him. He has not changed. He's just trying to slide past and screw over a new victim.
I'm sure there are exceptions. But that has definitely been my experience.
When an agent tells me about bad background stuff, I tell him to type up an explanation letter and to be sure to explain how you have made changes that this won't happen in the future. Works almost every time.