New to Apartments, Need your wise counsel

[Joel C.]

I have a duplex with about $150k in equity that I'm thinking about doing a 1031 to buy a small apartment complex (around 20 units). I don't have one in mind right now and honestly I don't have a market in mind. I'm open to any markets. Here are my questions:

1. Should I use a broker since it's my first time investing in apartments?
2. What is the minimum positive cash flow you like to have per unit?
3. Is it bad that I'm looking in all markets, just looking for a good deal?

Any advise on how to start, who to contact, and anything else I should know but don't know to ask would be a great help.

Thanks.

Joel