@Cruz RodriguezWelcome to a passion project, the most high-value site on the world wide web.

The areas you mentioned are gentrifying, to some extent. 

I would encourage you to check out some of the local meet ups, they are welcoming and involve individuals with a wide array of experience in this world.  

... we're not putting "Loan To Value" all over your house :) ... it stands for Luxury Vinyl Tile which comes in planks that are about 6 inches wide and 4 feet long.

How do you or the structural engineer knows the extent of the horizontal crack in the foundation? 

At present I'm looking at homes that don't need FULL reno--mostly aesthetic fixes/updating, but still fixer uppers to an extent. 20% down and leaving ample cushion (I think) for reno etc. 

However, there is no fence, and while the lot is deep, it is not that wide and the neighbors are fairly close on either side. 

Also, for example, an X-ray lab is usually made out of concrete, with about 3+ft wide walls, or a combination of lead and concrete to absorb the most damaging x-alpha-gamma rays. 

I hope it gets a wide audience.

However, based on the extent of all the other unauthorized repairs & damages, that is minimal.I would advise against hiring a public adjuster or lawyer at this point.