He believes that it is my liability if his vehicle gets damaged due to him not being able to adequately maneuver his truck and running into a stone wall or the garage, etc.What would you do?

The data interpretation would be useful in a few ways I would imagine.For example, analyzing traffic and usage patterns for vehicles and common usage areas would be good to determine the anticipated lifetime of the asphalt parking lot and if sidewalks or walking paths are not being used and why. 

AlsoMake sure you have insurance as temp fences fall down all the time and can cause damage to vehicles or things nearby

For $5,000, I could've gotten something reliable but with 150,000 miles and putting 36k+ on it per year would make me think I'd need another vehicle after a year and a half.I thought just spending the extra money and paying it off ASAP was the right idea for my specific situation, but now I'm thinking maybe not.

No lien on the vehicle was required to have a writ of execution from the County Clerk. 

As a realtor, I represent the LLC which I am a managing member of, which was the vehicle used for the whole transaction.

In the lease there should be wording about keeping the yard up and not having unlicensed vehicles. 

I have heard additional cash infusions are limited with a DST model and they are heavy fee laden to an investor.People need to know the risks versus the benefits as well.DST's are the replacement vehicle most use today for TIC's. 

These passive syndications have been a perfect investment vehicle for me and my situation. 

Investors looking to use TK real estate as an investing vehicle need to understand that they are paying retail prices for someone else's risk and work.