The important thing is to fix the root cause.

Many foundation problems have water as a root cause - be that infiltration in a crawl space, drainage around the site, cracked sewer line or water line.

The market out here is strong with a lot of tech companies (including Google and Facebook) and Fortune 500 companies (Nationwide, Big Lots, L Brands, Cardinal Health, etc.) laying down roots here.

I have seen some of this stuff already but did not have an understanding of why (the root), just knew that it was not right or functional.

During the hydrojet call, the technician snaked the line and suspected there was an obstruction about 50-75 feet in, so I think a fourth possibility is roots intrusion.

Negotiations were handled by my agent (Danay Guenther-Root Realty).

They used a dozer to knock them over and push out the roots as they pushed the tree to the burn pile. 

It's good to appreciate your roots and humble beginnings.

Make sure you budget for time, consultations, removal, root raking, in-fill, soil testing, compaction testing, and tree replacement costs. 

I've never heard of block walls deteriorating after long term with water-maybe something made of wood that isn't treated.To undo the sod, depends on how long it has been down and how deep the roots are.