Has any one heard of or worked with Liebman Entertainment, Persona Management, Prestige Entertainment or Sinclair Management are any or all of them legit?

Also J. Mitchell Management I did look them up on the board but I am still not sure if they are legit or not?
Thanks in advanced!

I believe they are all legit. (J.Mitchell Management I have heard alot of mixed reviews though so I'm not 100% sure about them. I'm sure other people will have more info. to offer.)

Have heard of Sinclair from others but that's the only one I know of.

Have you heard good things about Sinclair? We have an appointment scheduled with them pretty soon.

4MyBelleofbroadway..we are currently signed with Sinclair. They are wonderful Managers. Our DS has gotten a couple of commercials through them since being signed in April. They also have him signed with agents as well. If they are willing to take you on, I highly recommend them

We know a boy with Persona who has done very well in commercials and movies. But when his mom told me he was with Persona, I hadn't heard of it and googled but couldn't find any info . . . I'm guessing they are very low-key!