I don't have enough extra capital to invest seriously in all three, so I'd prefer to focus my time/money.So, while I feel confident in my next business idea, I also know that about 2/3 of the businesses I've created over the years have failed to turn a significant profit, so real estate seems like a better way to diversify.Here's the problem: From everything I'm reading, it seems like the cashflow from rental properties is relatively low on average (e.g. $200/month/unit seems to be a common example).

Few items to consider.Management fees because of the size in rents I assume its a large multi-family.Closing costs don't even amount to 1% generally speaking 3-6% closing costs is the national average.

9/11Financial CrisisPandemic 1987 market collapseOk, so wildly average about every 10 years or so.

I think I’m panicking because I currently have 12 single family units that net an average of 6800 (30 year loans on most) a year, and also only cost me an average price of 45k each(they are all worth close to triple now, I got in at a crazy time and renovated all of them.)But each unit on this purchase only nets 3200 a year(the Loan is for 15 years, not 30 so payments are much higher).

Average caps for my market....C- 8%-12%+B- 6%-8%+A- 5%-Our market is pretty linear in the market corrections. 

Austin is strong.Leasing is still going strong albeit with slightly above average price reductions.

The average CAP for the city is about 7.6.

Here's some additional information on how I did the calculations in the report, as well as some insight into my current situation.Average Rent: Did an initial search on Rentometer for average rent in this area (calculating based on $725; 3 bedrooms).Expenses: I am using the 50% rule to calculate my expenses which is why I have left the "Fixed Landlord-Paid Expenses" empty. 

And of course so many terms can change the rate but for a regular 30 year fixed Id say to find a lender lending between 4-5 is going to be your best bet, but somewhat average at that. 

My annual expenses average around 3000.