This is ordinary income plus social security and maybe state income tax. 

What's your monthly gross income?

.; rent medians and lower and upper bounds, typical days on market before securing a tenant, local vacancy rates, tenants' typical income, education level, employment opportunities, credit, and rental history).

Rather than re-create the wheel clients come to me nationally to source properties and I help them as a commercial retail buyers broker.

So do you say in your screening criteria that if total debt plus monthly rent payments = greater than 45% of gross monthly income, you will deny the application? 

I mean they do it for low income senior residents and the multifamily affordable apartments that been there for a while.

Landlord Tenant laws are challenging but if you invest in the better neighborhoods, you are less likely to run into the issues landlords customarily face in the low income areas of the city.

You're looking for the best sources of Data for Vacant Land Leads?

Do you have any sources or info to try and ascertain that? 

Please share any great data sources you have found or tips on evaluating areas.My 1-year goal is to purchase 3 multi-family properties, with 8 to 40 units, at least $5000/month of initial cash flow, and some opportunities to improve operations and increase cash flow.I am hoping to forge alliances with like-minded investors to fund Win-Win deals.I am so excited that I have officially started my RE Investing journey!