First timer buying 10+ units

[Priscilla Cheng]

Hello,

I’ve been living in one unit and renting out the other in San Francisco for the past 7 years and I'm thinking about investing in a larger multi unit building (hopefully close to 10 units). I'm thinking about some towns in California, away from the bay area or in  areas like Texas or Virginia. I would like  buildings  that will give me good profit after paying all expenses. 

I would appreciate any advice from people who've done this before. What are things I need to watch out for or consider when buying a multi unit vs a single family/duplex?  Thanks!