If you a realtor who you think would be a good match, please send me a recommendation. 

For example...some people love section 8 housing...others hate it...you'll need to learn both sides and figure out if it's a match for your personality. 

Early on the first day of a listing you can get the remarks and photo's to see if it matches your target. 

I would suggest1. creating a plan on what you are looking for, what returns you need and the level of risk you are comfortable with. 2. find a market you are comfortable with that matches up with your plans. 3. finding a provider that you trust. with good PM. 4. then finding the properties is the easy part:) good luck!

VRBO uses conversion rates in their algorithms to determine "best match." 

At times they are up against the clock to match a deal to a buyers criteria and go to closing.

My experience matches @Stuart in terms of type/quality of notes I have purchased.

Typically that's the last rent you're likely to see from them.If, after speaking with them your gut feeling is that this person would not be a good match as a renter you can either tell them sorry they don't meet the criteria for the rental unit based on income or eviction history (NOT on issues such as family size or anything that would violate Fair Housing laws) or you can suggest that they drive by the rental unit to get an idea of the size of the place and the neighborhood. 

I'm currently under contract to purchase two other duplexes from the same owner via short sale that are model matches on the same street at hopefully 66k and 76k.

The other option is to find a standard purchase and sale agreement online and pay an attorney to edit it to match your needs and any state laws.