Our current rent collection process consists of monitoring the deposits. 

The prices and rents are consistent with any other C class neighborhood.

You need a consistent history of business and assets.

Or a little higher.I know that requires building a team from scratch and keeping them fed consistently. 

@Henry Lazerow Never done direct mail, but everything I read/hear about it says you have to be consistent for it to truly work.

The accuracy is only as good as the consistency of the calculations.

I spend about $2000/yr pretty consistently.  

Would need to be consistent and stick to one frequency in order to truly validate the numbers.

I am located in Fort Worth, TX & my end goal as a real estate investor is to have a 100 door rental portfolio consisting of small 8-20 unit apartment complexes.My plan is to build up a rental portfolio, starting with 2-4 unit properties, & eventually sell those to leverage for larger properties.

It's pretty easy to see areas that consistently get high rents and bad areas that get low rents.