It's not the best investment per se, as the cash flow is negative, but we had to get a bigger place with a baby on the way, and it's underwater so we couldn't sell. 

Some who used to do it say it led to negative relationships with other Realtors.Is there a service out there that can put a listing on the local MLS?

The market in the neighborhood is about $83 to $85 per foot, but I have two major negatives in my floor plan--lack of a fourth bed in a 2000 plus sqft house and all beds up so I will have some significant downward adjustments despite having the finishes that are considered quality in that neighborhood.  

There are 2-4 unit properties in the Dayton area that would have negative cashflow, even with 20% down and self managing.

The API integration is better, but file download method is still a good and acceptable option. nothing negative to say about their customer service.

Additionally, ListHub's MLS partners have the ability to redirect traffic to their own public websites and include the MLS public site traffic statistics in the ListHub reports to better quantify the value the MLS provides to members."

However, many will caution you on this site that expenses will approach 50% long term with any rental property, so with those numbers in mind you will be looking at a 3.3% CAP rate and negative $1,500 / year cash flow.

My best guess it's statistics based, meaning people who remain in a house for at least a year are less risky because they are more likely to continue to pay the mortgage even if they move out, so they offer you a lower rate.  

I tested for black mold and it was negative. 

Does anyone have any "statistics" (doesn't have to be audited) on the call rate and quality generated from 1st, 2nd, 3rd, etc. mailings to the same list?