There are many types of general aviation (GA) users that have leases with commercial service and GA airports. These include aeronautical service providers, corporate flight departments and other aircraft owners, and other users such as cargo, charter, and fuel farms.
ACRP Legal Research Digest 46: Legal Considerations for General Aviation Lease Development at Airports, from TRB's Airport Cooperative Research Program, provides background on relevant legal issues, analysis of 16 GA lease terms, and a list of issues that can arise during negotiations.