It’s likely the GC will subcontract the concrete work to a specialist while they focus on managing the permitting process and ensuring everything is done to code—especially if there are ADA requirements involved for the ramp.Let me know if you need help navigating the process or any tips for working with contractors.

Many carriers are including exclusions for GC commercial general liability coverage and professional liability coverage for engagements involving condos and even stricter exclusions when dealing with conversions.

The rules are designed to prevent related parties from engaging in exchanges that shift high basis property for low basis property, followed by a sale of the low basis property, effectively "cashing out" without recognizing gain.If you sell a property to a related party as part of a 1031 exchange, both you and the related party must hold the exchanged properties for at least two years following the exchange.

In that case you should get an attorney involved as encroachment would be a material issue that if known should have been disclosed both to the broker and to any potential buyer.  

No agents involved.

I was involved in a bunch of industries—from wellness and gyms to digital marketing and consumer products.

Enclosed a few pics for your reference.Should I involve the HOA?

Ordinarily those tenant vacated damages would be too remote, but it sounds like they were contemplated by both parties at the time of contract.Were I in this situation I would be looking to state law to determine if the EMD is truly the extent of my potential liability as a buyer. 

The last part is where results happen.

Our current tech stack is a mix of Buildium (very clunky), Breezeway (great, but limited without a PMS), Xero and Google Suite tools with lots of spreadsheets involved.