That was the only thing that showed on the title search.  

Good luck in your search."

Other than the tools they have access to, how do I know if I can trust them in looking out for my best interest?

Current slab can be removed with hand tools, concrete can be bought by volume or prepared on site. 

Since you are a pro, use the calculators provided under tools to help but here is my quick rundown on a post-it:Buy = $80kRehab = $30kHML Points = $3kHML Interest = $3k (assuming 90 days held total)Holding Costs = $1,500 (assuming 90 days electric, gas, water/trash/sewer, builders risk ins, prop tax)*Selling Costs = $10k (6% relator fees, 1.5% closing costs)Sale Price = $135kProfit = $7,500*I am taking a very high level guess on your holding costsFor me this is WAY too thin of a margin.

I'm trying to use the tool from bigger pockets, smart move with transunion but the website has not been working the last 3 days that I've tried to use it.

A google search will show you some other options.

Does anyone have a useful tool to carry around keys that isn't just a standard key ring?

I'm intrigued by this option, but also the word "balloon" gives me heartburn, although I know from reading on here that it can be a valuable tool.

If you wanted to take it a step further your county should have a local zoning board i'm pretty sure you can appeal to them as well for info in exactly what your looking for just try doing a bunch of keyword google searches i'm pretty sure something good will pop up. good luck !