That lawsuit would cost more than the building, if you lose, and if you win you will still be out a lot of money; and way more stress than the batteries.

If the neighbor(s) will not execute an agreement allowing access, a lawsuit would be necessary.

If your main point was supposed to be avoiding losing the property in a lawsuit, get an umbrella policy.

This could result in class action lawsuits where tenants of a building file together and basically wipe out even mid-sized landlords. 

@Blaison Samuel No, but a simple Google search reveals someone who has bought a ton of domains, all with the keywords "J T Foxx complaints and J T Foxx lawsuits" ......possibly an attempt to bury any criticism of the fact that there was a lawsuit alleging sexual harassment of a minor, or comlpaints of him charging up to $60,000 for whatever it is he does.http://www.bizjournals.com/prnewswire/press_releases/2012/08/24/LA62361Does that help?

I am looking to buy a 3/2 SFH near Atlanta that has a full in-law suite in the basement.

Any lawsuits should be limited to the assets of the LLC and not your personal assets (assuming you run the LLC appropriately and the corporate veil is not pierced, some debate as to SMLLC).

The lawsuit includes claims for breach of contract, specific performance, and trespass to try title, and the case is registered in public records.Additionally, the lender has initiated foreclosure proceedings on the property due to Seller Z's default on payments.Is there any action I should take as Buyer A?

I would be very careful if you move forward and do it because anything that goes wrong is going to fall back on you and if you do not have a management agreement in place you could be opening yourself up to lawsuit if you fail to deliver on the expected services.   

No denial just hope that right wins out and a good law suit.