Out of State Multi Unit Investment Advice

Hello, 

I purchased my first single unit rental property 2 years ago and I've enjoyed the return.  I spent the past 3 months researching for my next local buy in Baltimore MD, but the returns aren't that promising.  After 3 weeks on BiggerPocket I am now open to the idea of investing in a small apartment complex down south where I can get more bang for my bucks.  My business partner and I are currently working on building a team of four to spread the cost and work that will come.

I could use some advice on investing out of state?

Any recommendation? 

Thanks.