PS - if you are looking to invest out of state, my best advice is finding an investor friendly real estate agent and someone who invests in real estate themselves because they can plug you in with their systems, processes, real estate team such as GCs, PMs, lenders, etc

My income has dropped significantly bc I chose to sell my business and take a more relaxed job so I would stop killing myself.  

You will likely never get any money from that tenant unless you have VERY good collections processes. 

You sell to them, or not, but they come to you. 

Especially when factoring in commercial spaces.One aspect of the deal I'd consider, is whether you can individually parcel the commercial spaces and sell them to the businesses.

Quote from @Nathan Gesner: Quote from @Nathan Sherwood: Thanks and that makes sense (and is similar process to some of our other units)The issue is we would like documented verification that the tank has gone below the established threshold (ie 10%). 

Whether you're trying to sell or lease the unit, a prospective buyer/tenant will be IMMEDIATELY turned off if the current tenant opens the door and says, "What the heck, I was never told you were coming."

It's a highly technical process cumbersome by NYC Dept. of Buildings, therefore it hard to explain what to do in a few short sentences.

I thought about selling the property for around $295,000–$2750,000 only 1 year after I bought it.

They can help with title searches, ensuring all liens are cleared, and handling any legal issues that may arise during the process.