Has anyone done business with them and had success or trouble?  

Get a solid understanding of the business via going to local REIA's, signing up for free webinars and attending events4.

We have been in the real estate business since 2011 and have never been sued and we pray it stays that way!

So we are looking at buying a commercial building for our business and I have a few questions.If we buy the building and then are renting it out, the new valuation for refinance will be based on the NOI correct?

You are heading into a busy season, so if you are priced at or near similar rents, then may be worth waiting longer as market is just getting stronger. 

I have found a tax sale that is actually a road in front of a business.

Using a product like Invelo or Propstream will be a game changer for your business.

Navigating through the se of options, I would recommend asking people you know who have experience in whatever it is you are trying to do for their referrals, cross checking what they say with any online reviews, and coming to your own conclusion after speaking to them yourself.

His average contract value is around 15-20k and his profit margins on these jobs are roughly 50%.I don't have an agency or any sort of business that provides this service.

Now if you have 4 roommates in a 4 bed house y’all are going to be In each others business one way or another.