@Bryan Charles, if they're leaving the vehicles there, ask if they have title to them.

In general, a vehicle purchased for business has a corresponding deduction based on:Type of VehicleUse of Vehicle (% of overall use for business)Certain types of vehicles - namely Trucks (IRS definition of a truck) and full-size SUVs -- experience a full depreciation on the year you purchase them to the degree that the vehicle is used for business. 

It's an incredibly useful vehicle for getting started and punching above your budget (from a down payment standpoint).

The campus is located off of I-35 and Old Settlers Boulevard.According to the report, the smaller two buildings will be used as parking for employee and delivery vehicles.

@Matthew M Spolsky know/remember your “why”.For me, RE investing is my main retirement vehicle of choice but it’s really about my responsibility to provide for the future needs of my family and most importantly ensure my wife is taken care of.

Drive by your place often taking photos of the license plates of their vehicles. 

I had also thought about downsizing but I couldn’t bring myself to do it because my vehicle gives me quite a bit of joy and flexibility.

A water shut-off key (looks like a big letter "T") in every vehicle I own, so that if I or my wife are in town and someone has a problem the water can be shut down faster than the city can get out there.3.

So if you're looking at socking away some money for a down payment on real estate, I would recommend a more secure vehicle like a savings account while you are looking for the right property.I love the suggestions above regarding a house hack somewhere near your university.

I would suggest wording the notice is such a way that you can discuss other options for this tenant to park his/their vehicles that would satisfy both of you.good luck.