I'm having a hard time finding any estimating tools for this kind of a project, adding a story and multiple BR/1 BA, and wondered if there were any tools, sites or recommendations any of you have for this kind of a project. 

The numbers are trashy now but with the right approach, resources and ability you will come out on top.

Just enter the address of whatever property you're looking at and the site calculates the market rents 

I'd like to not "find out the hard way" if one of these sites are not a good match for me.The ones I'm considering are Propstream, Property Radar, ListSource, and PropwireSomething to note, I am looking to return to doing some wholesale deals, using criteria such as absentee owner, out of state owner, tax delinquent, vacant, liens, and pre-foreclosure..

Many people start out active because they want exposure to real estate and don't know that you can start out passive - you can effectively hire the asset manager and supply capital to the investment.You can have great success as an active or a passive investor - but it is important to understand the difference and to select whichever option matches your skills and resources the best.Good luck!

If I gave oil rights to one entity and mineral rights to another, what would happen if both entities discovered their rightful resource in the same place?  

And make sure you have the financial resources to handle that. 

The tenants threw a party and neighbors called it in and now he is dealing with the City on how to address this.What we think should and shouldn't be enforceable isn't relevant.

This is a great place to learn and to connect with people so take advantage of all the great resources.

If you have significant resources you can start on your own, if not partnering with someone who brings some local knowledge can accelerate and stabilize your journey.