That is a great motivator for Seller to work with you, but expect a negotiation. 

Lenders are motivated to see the project succeed since they’ll benefit from the upside.

Keep everything black and white with him, only communicate through text & emails, and think about whether or not to allow him to renew his lease.

When I replied back to their email asking when I could pickup keys to assess the situation, she doesn’t respond to email, nor she pick the phone, nor responds to text.

If I already offered them these two options via text/phone, and I start the 60-Day notice vacate tomorrow, can they use this against me?

This is the IRS "intro":https://www.irs.gov/businesses/small-businesses-self-employe...and this is their 256-page guide to train their auditors:https://www.irs.gov/pub/irs-pdf/p5712.pdfand this is the actual text of the Regulations:https://www.govinfo.gov/content/pkg/FR-2013-09-19/pdf/2013-2...Nobody has time to go through and digest all of that.

I work with investors that are in your situation, more often than they realize it, with the same motives.

I know you already said it was great for motivation, but was the actual content valuable?

Maybe it will motivate them to make the repairs and give you a Certificate of Compliance so you can move forward.Even if they comply, I would probably file a complaint against both REALTORS once the transaction is closed.

I had almost a dozen friends emailing and texting me asking why they can't find a $400k beach property in the area with those returns.