I was at the Traction REIA last night as well and couldn't wait to get back to BP to question the legitimacy of the technique.

The problem I've had with getting any traction on check fraud or pressing charges against somebody using bad or stolen checks is a jurisdiction fingerpointing game from the police.  

It can take some time to get some traction, especially if you don't have any reviews.

Credit scoring is a labour saving device used because banks (unlike landlords) have to adjudicate thousands of credit applications everyday.

 $115,000 is a bit low for anyone at $150,000 - but an offer of $123,467 may have had some traction.  

This might be a long shot but if the market in your targeted area is that hot you might have to pay closer to market or lower your standards to gain traction

This device is in place for the safety of our guests and as a courtesy to our neighbors.

But then I just came across rentredi and I really like the app aspect of it and being able to access my properties on any device. 

Seems to me you might get better traction if you hand delivered the offer and sat down with the seller to work through any objections, you go to all this effort to find these people and then just send them an email?

Look at places like Oahu where overnight 90% were made illegal.2, SFHs are dollar for dollar very inefficient, financing is easy and they are more liquid but your most valuable asset is time so if you go into STRs and SFHs you could find yourself at a loss of years before you gain traction.3, Watch what the big players are doing (I know that some hedge funds are buying SFHs but not at the rate as large multi-family)4.