The whole basis was I'm a white rich guy, he is a poor black guy and I "took advantage" of him.

That is the black and white of it.

So when I buy of course I always look at the counties value off of the County web site.

This is true both inside and outside of an IRA.There is a calculator available in the learning center of our web site that would probably help you out.UBIT is the tax paid. 

@Josh Black thanks so much.

Go to your county web site and look at their online services.

I have heard of a broker in Cleveland that Realitors are starting to black ball his listings.

Do some web searching and you'll find some. 

Typically you would use CRM software(web-based nowadays), youtube is full of videos with examples of how some people use and customize the software.

I would recommend asking other real estate investors who are active in Rhode Island, or perhaps attending a local real estate networking group such as RIREIG in Warwick or Black Diamond REI in southern Mass (if you intend to do anything in Mass too).4.