@Michael Almand, for a full line-by-line breakdown and scope of work, my preferred contractor will charge about $250 to walk the property but will credit it back if he and his team are given the job.

However, because I am unable to make trips to scout locations or look at homes in person.

I use quicken for personal and WAVE for my businesses.  

I personally interact with each and every guest.

Mostly from a home equity line of credit.

When you say "we," are you speaking about your business or your personal tax returns, or does your business flow into your personal returns because you file as a sole proprietor?  

Generally there are multiple units for each "zone" if you will when I've seen them installed.Regarding your problem at hand, I personally would simply adjust your plan to move and make your initial plan to get the current issues resolved, while costly now, in the long run holding onto the unit will likely pay off. 

Assuming I also use the Airstream for lodging while traveling for personal reasons, would I just take a pro-rated amount of depreciation for the amount of use that is business vs. personal?

I think they meet in person, but not sure it may be on zoom - they are not members of MAREI, so I don't have all the info - they do post their meeting on Meetup.And there are a lot of virtual meetings, plus MAREI events on our calendar. 

THe lender is a credit union and it is a conventional low rate loan.