My 2 cents is to assign them a specific part of your uncovered yard as their assigned parking space. We have a little experience with parking spaces. Assigning them a specific area of the yard will make it clear what your expectations are and will deter them from taking a covered parking space because it was empty. A simple way to do this would be with some flexible orange sticks that pound into the ground OR use a 12" nail to anchor some orange cones to the ground. The boundaries markers would be something that can handle being bumped, relatively cheap, and also durable.
My opinion on the rate is that your price seems fair as it's close to what you charge per sqft for a parking space. Going by your price for a 12x40 my math says $0.08/sqft. The quarter acre, or 10,890 sqft. comes to $907.50 rented at $0.08 per sqft.
I would also point out in the TSSA lease, that you provide a place to park and store equipment, nothing more. There is no guarantee of security. The last thing you want is a lawsuit or judgement against you because there was equipment theft while they parked at your storage property. The theft risk should fall under the renter's commercial insurance policy. Be sure that you do not assume that risk or say "OK" to the risk. A lot of times an OK = YES.
Justin Vosburg
Facilities Maintenance Manager
Attic Management Company
2805 S. 77 Sunshine Strip, Harlingen, TX 78550
Cell 956.346.1897
justin@aattic.net
www.affordableattic.com
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