Landlord renting out building’s parking lot to hotel next door.
I’m a tenant at a building with ten small units of about 750 sq ft each and a total of 40 parking spaces. The landlord had recently started to allow the hotel next to us to use our building’s parking lot for the hotel’s staff parking every weekend, for a fee I am sure. 

Our customer has complained about not being able to find parking as a result. Is there anything I can do? I’m too invested into the space to move.
[{"id": "icssww5", "text": "You could start by looking at the lease to see if a parking spot is included with your tenancy and go from there. If it is you would need to send a demand notice that the landlord is in violation of said lease. Send certified. Also I\u2019m not talking about only assigned parking just any parking I\u2019m general.", "replies": [], "depth": 1}, {"id": "icsvugt", "text": "Read your lease.", "replies": [], "depth": 1}, {"id": "ict2krr", "text": "As others said, read your lease &amp; ideally work it out between you and your LL but also look into your municipality\u2019s zoning ordinance. Figure out the actual size of the building (typically available through an assessor or similar office\u2019s website) &amp; minimum required parking in the zoning ordinance.", "replies": [], "depth": 1}, {"id": "ictugps", "text": "If spaces are included in the lease, then get them assigned and get the right to have cars towed from your spot.", "replies": [], "depth": 1}, {"id": "ictv4mi", "text": "Read your lease.  Unless the lease stipulates X numbers of parking for the Tenant and their customers/guests there is no requirement for the Landlord to provide them.", "replies": [], "depth": 1}, {"id": "icu3e8u", "text": "Even if your lease does not stipulate parking availability, you are likely protected by the zoning parking minimums that the landlord is required to comply with for your use or building occupancy type. By obligating the parking for your building elsewhere, there is a good chance the landlord is no longer in compliance with the zoning of his property.", "replies": [{"id": "idhdt09", "text": "The only caveat I'll add to this is that the zoning in place when your building was put into service in its current form (i.e. if there was a major renovation requiring the LL to obtain building permits) is going to control. So make sure you're looking at the correct zoning ordinance if you go down this route. Zoning ordinances change significantly around every 15-20 years and in minor ways annually. Based on the limited building description, I'm assuming the parking requirement will be on a square footage basis - so x spaces/y building square footage.", "replies": [], "depth": 2}], "depth": 1}]