Advice regarding joining a real estate brokerage for multifamily

[Rahul Punj]

I recently completed my FL real estate associate exam.  The main reason I decided to take this step was to advance my knowledge and be more involved in real estate investing. I currently own a commercial medical building and have owned some residential properties before. I have now decided to focus on multifamily properties.  Given that, I would like to join a brokerage where I can be focused on multifamily properties for investing myself and possibly sometime in the future help other investors.  

I would love any advice you may have in how to pick the right brokerage?