How much it rents for is not determined by what you'd need to make it a good investment, it is determined by the market. 

For example, I know of a deal in Reno, NV where all the records were still on paper, and the owners didn’t even know the rents people were paying.When I’m evaluating multifamily properties for clients around the Reno area, I calculate current, market, and proforma rents.

Currently, the market is still short on supply so when putting in offers you need to put on the 'seller' hat and think what they would want.

Since you're planning to buy your first multifamily unit, I suggest looking into markets that have great macroeconomics with growing population and jobs just like Columbus OH.

The NOLA rental market, especially for the more expensive neighborhoods like the one my rental is in, has been slow.

@Jake Berlinoff market

Hey everyone,I'm beginning my direct mail marketing campaign through a third party company as of now.

Your marketing needs to change a bit but other than that, it's very similar.

Look at their marketing strategy.

You want to look at anything on the market to get the experience.