Quote from @Michael Overall: Good day, If an investor has 10 rentals and wanted to over time sell them and put the money tax free from a 1031 toward a large purchase is there a process to do that? 

.: What is the average conversion rate for cold calling using software like PropStream, specifically targeting probate, foreclosure, or tax delinquency leads?

@Daniel Tanasa $1905 per month (mortgage +interest) , taxes (around 3600 per year) and insurance (1500 per year) => so 2330$ is my PITI

Maintain - includes taxes and insurance?

I have gutted to the studs the last 5 properties I have bought from tax/foreclosure sales in this county and this one is not far from a full rehab. 

I've been using the GE  GFW148SSMWW // GFT14ESSMWW models which comes to $1,650+ tax for units and stacking kit. 

How much money, after expenses and taxes would he property make yearly?

High taxes.

Check with your municipality about how property taxes will change when you buy the place.

To transition to multi-family properties, research landlord-friendly states like Texas, Florida, Tennessee, and Indiana with favorable eviction laws, lower taxes, and higher rental demand.