I've had a free trial of property radar before, and I was impressed, but how do we know the data is accurate and current for any of these platforms?

It was mostly due to my day job income and low cost of living over a long period of time; however, real estate accounts for about 50% of our income through a small portfolio of short, mid, and long term rentals. 

You could read 100 books and still need to learn more because certain things must be learned through trial and error.

And where I could boost the rents 20% over a four year period.  

In judicial states in which the foreclosure process often takes a year or more, this not only generates income, this also typically mitigates property deterioration, vandalism, and other costly issues which diminish the value of abandoned properties which remain vacant for extended periods.

But, if you do evict AND they request a hearing then the judge MAY interrupt the partial payment as acceptance of rent and therefore you would have to start the process over at the beginning of the next payment period.

Period. 

Barron first if you are within your inspection period, you may be able to terminate the contract without any reason.

They used that period of unemployment to skip paying student loans and then try to get some kind of program/hardship deferral or something aka "gaming the system".

That is mobile home park investing day one, first period lesson plan.