maybe have them send you pictures of before and after to back up the work performed, I don't know too many people that don't have a cel phone.Use technology whenever possible 

We have spent so much time and effort improving this building and I hate to lose all that we have gained in the past several years to this person. 

Here @ BiggerPockets.com, Brandon Turner has also mentioned you could call the bank and explain to them that this is a 'performing note' and maybe that would help call them off but wondering if anyone has dealt with similar situations?

The presidential center offers a rare chance to reinvigorate the economy of nearby communities and make improvements for the area’s infrastructure and parks.

I'm sure the nerbors appreciated your improvements. 

In 2014, Elgin completed the Central Business District Streetscape Improvement Project and the Riverside Drive Promenade.

If there's already an auction date, you wouldn't have time for a specific performance action anyway.  

What you are looking for is a real estate savvy CPA who can also talk about nexus rules and potentially perform a nexus study for you.

In 2012, at the suggestion of my financial advisor, I picked up a couple rental properties in Highlands Ranch and they've performed quite well.  

I suggest putting in at least 4 inches to cap your building and improve energy consumption, At the time of the tear off coordinate renting a blown insulation machine too and you can add insulation from the roof into the attic/crawl space above the ceiling level to avoid interior repairs.