I work in comp so I have no issues building my own but I'd prefer to simply use one that's already created.Finally, aside from reviewing prior projects on the company's website and scouring the internet for reviews, does anyone have any tips on how to select a given company?

Per their website, with a purchase price of 219k, 30 year fixed at 6.5%, renting for $1,850  a month, monthly cash flow is $508 a month.

You can use a  hypothetical  purchase price and loan amount for the pre approval process  as this will get revised to the actual figures once you have located a  proeprty and have an offer accepted

The majority of data is open source and we can get it by simply looking at Zillow, county websites or heaven forbid taking a trip down to the county clerk’s office and actually pulling the documents.

If you're located in Chicago, I recommend checking out the Straight Up Chicago Investor podcast and other resources they have on their website.

After much back and forth with our attorney and their regulators, etc they decided series LLC’s should be a part of their customer base and have rewritten their policies to accept them (and us).

A concession is primarily for the buyer(s) benefit, it can help seller(s) to sell a property but there is really no advantage to a seller accepting an offer with a concession except that it is incentive for the buyer(s) to focus on that property, it makes the terms more attractive. 

I would like to have a loan calculator in order to do offers with out using mortgage broker before have accepted offer.

Credit score is acceptable, he has no evictions, have enough income to cover rent comfortable. but then i am here as it's useful to learn from others experience for this kind of profile and background that I have no experience with.   

I was browsing NHS' website and ran across their "NHS Redevelopment Corporation Liens Available" page.