Multi-families can be great for cash flow, and is what I do myself along with several of my clients (investor-friendly real estate agent in St Louis) but it's a much more long term approach than flipping.  

I get calls from international clients all the time.

I am looking for any advice, referrals, and info on how to get started in buying out of state/building a team as I feel that it might be difficult to trust many people as well as secure rental payments from hundreds of miles away (even with a property management company).Also, if I buy an investment property, would I still be able to qualify for an FHA loan for me and my girlfriend for our future house hack?

@Brian Bistolfo We have a lot of clients building their portfolios using the BRRRR method, but it is getting very competitive.

I don’t ask for referrals from my current investors or clients, but I do get them.

It's difficult answering this based on the information you gave.

It is very difficult to finance properties under an LLC. 

I just sold a condo in Lake Marritt for a friend/client.

@Stephanie York  My clients often buy sight unseen, but I usually do a walk through and send them video.

New to apartment building investor and would like to employ value add strategies to build equity and wealth,cash flow should be positive.But my main concern is to build equity and wealth.So my target should be mom and pop properties,but as far as I worked with different brokers and research different market,it seems this kind of properties are really difficult to find.Any experienced investor can share insight here?