Most recently I saw a potential property that met my criteria but the current rents are extremely low for the area. 

Let's pretend it's a generous 1 yr CD with no early withdrawal penalty.7 year CD: 2% and penalized six months of interest if you pull funds out early.If you pull funds out after exactly 12 months, it's a wash:1 yr CD @ 1 yr: $10k * 1% = $100.7 yr CD @ 1 yr with penalty: $10k * 2% - [$10k * 2% / 2] = $100.After 18 months...1 yr CD @ 1.5 years: $10k * 1% * 1.5 years = $150.7 yr CD @ 1.5 years and penalized six months of interest: $10k * 2% * 1.5 years - [$10k * 2% * 0.5 years] = $200.So there's your low risk / low reward "CD hacking" tip of the day to get rich by earning an extra $50 on $10k after a year and a half.

Is it even possible to make a very low MAO with the cost of flood repairs incorporated (while the owners have insurance money on the way)? 

Where as many other midwest markets have low purchase price the rents are much lower. 

I am also thinking of using it for a couple of properties on my own too (duplexes) for the DTI issue mainlyWe are getting loans in the low 5% range with 25 year amortization and a 10 year lock.

I've been doing that hands on since 2004 with great success and low risk.

It has tenants, I have had one month of vacancy since 2012, I would prefer to sell it without an agent, however I worry that there will be dozens of investors wanting to walk through the place, disturbing my tenants, making them antsy and the investors then low ball or otherwise do not generate reasonable offers.What is the best strategy for making sure the potential buyers are serious before letting them in? 

One way or another, and if nothing else, someone has to evaluate the property as to the probable cost to bring it to an after-repair-value that matches the surrounding market's fair market value for comparable properties - before ever offering to buy it at "such a ridiculously low price" (as the seller will term your offer at first), let alone, before offering to sell it at "wholesale" to your buyer (i.e., so far below fair market price at retail that the repairs can be covered as well as your profit and the flipper's profit in its eventual retail sale -- or 'buy-and-hold-to-rent-out'er's profit before they would expect to get it rented -- plus the title search, closing, and any tax costs related to your purchase from the seller (usually split somehow) - and finally, the title search, closing, and any tax cost split with whoever buys it from you.Now, that someone could be you (you do trust you and your repair-estimate abilities, don't you?)

All separate heating systems installed in 2014.  

I also do not have a thermostat to my heat in the unit which leaves me no control over that.