California Commercial Master Lease is a type of lease agreement specifically designed for commercial real estate transactions in the state of California. It is a legally binding contract between a landlord (lessor) and a tenant (lessee) that outlines the terms of a lease for a commercial property. The master lease outlines the rights and responsibilities of both parties, including rental rates, duration of the lease, security deposit, maintenance and repair obligations, tenant improvements, insurance requirements, and other lease terms. There are two main types of California Commercial Master Leases: the Triple Net (NNN) Lease and the Gross Lease. The Triple Net Lease requires the tenant to pay all operating expenses, including taxes, insurance, and maintenance costs. The Gross Lease, on the other hand, requires the landlord to pay all operating expenses, which are usually passed on to the tenant in the form of a higher rent.