Calling every other day kinda reveals your hand. 

Or we'll need to cut the foundation and install a 10x10 post to help support the ridge of the roof..The point is everything takes time, and the more you get into a transformation the more likely you're to reveal other elements that while you're doing it you should fix now. - Somewhat contradictory to the above advice, but take your time.

We invest in mortgage notes and certain sellers it is common where they do not reveal everything.

My research has also revealed that most of these waterproofing solutions dont work for various reasons(no proper tilt in drain system so water sits stagnant and becomes smelly, no drainage at all...b/c they simply drain to under the foundation, etc).Now I know what to look for in a company, but I have a friend who builds houses and I might try to get him to help me do this myself...and maybe...just maybe...I could save $5000?

Devise a plan whereby you inspect the house, and assuming your inspection reveals they are Ok tenants (normal wear and tear), then I would let them stay on month-to-month on sort of interim plan contingent on paying on-time rent.

And if the LLC is sued, the court will simply order the owner's identify revealed.

That was not revealed at the purchase !

The Mortgage Bankers Association reporting commercial and multifamily delinquency rates reveals that the number of Fannie Mae loans that were 60+ days delinquent almost doubled in Q1 2015 as well.

Because I am sure you didn't conclude doing this on your own due to a comprehensive analysis revealed that texting these people what a good idea, right?

Doing some research on these locations reveals that they are some of the least desirable places in Columbus, with high crime and not many plans of expansion.So my question to real estate agents, investors, and anyone else familiar with the area: Is it possible to find a property in Columbus in a decent area (C or above) that can be purchased and fixed up for under $100k?