State law in California requires property owners to make certain disclosures as part of any lease agreement for that property. When a lease involves commercial property, lessors must disclose certain matters related to accessibility for people with disabilities and their compliance with accessibility laws. The Americans with Disabilities Act (ADA) of 1990 is perhaps the most well-known statute addressing this issue. Businesses that serve the public are required to meet various requirements under the ADA. To encourage ADA compliance, California created the Voluntary Certified Access Specialist (CASp) program. Commercial lessors must disclose to lessees whether a CASp has inspected the leased premises, along with the extent of improvements to the property resulting from an inspection. California real estate investors involved in leasing commercial property need to know about both their duty under accessibility laws and their disclosure obligations.