liquidity, and we are not aware of any such liability. To the extent Phase I environmental assessments reveal facts that require further investigation, we would perform a Phase II environmental assessment. However, it is possible that these environmental assessments will not reveal all environmental liabilities. There may be material environmental liabilities of which we are unaware, including environmental liabilities that may have arisen since the environmental assessments were completed or updated. No assurances can be given that: (i) future laws, ordinances, or regulations will not impose any material environmental liability; or (ii) the current environmental condition of our properties will not be affected by the condition of properties in the vicinity (such as the presence of leaking underground storage tanks) or by third parties unrelated to us.
We believe our properties are in compliance in all material respects with all federal, state, and local ordinances and regulations regarding hazardous or toxic substances and other environmental matters. Neither we nor, to our knowledge, any of the former owners of our properties have been notified by any governmental authority of any material noncompliance, liability, or claim relating to hazardous or toxic substances or other environmental matters in connection with any of our properties.
Insurance
We maintain comprehensive insurance, including liability, property, workers’ compensation, rental loss, environmental, terrorism, cyber security and, when available on commercially reasonable terms, flood, wind and earthquake insurance, with policy specifications, limits, and deductibles customarily carried for similar properties. Certain types of losses (for example, matters of a catastrophic nature such as acts of war or substantial known environmental liabilities) are either uninsurable or require substantial premiums that are not economically feasible to maintain. Certain types of losses, such as those arising from subsidence activity, are insurable only to the extent that certain standard policy exceptions to insurability are waived by agreement with the insurer. We believe, however, that our properties are adequately insured, consistent with industry standards.
Franchise Licenses
We believe that the public’s perception of quality associated with a franchisor can be an important feature in the operation of a hotel. Franchisors provide a variety of benefits for franchisees, which include national advertising, publicity, and other marketing programs designed to increase brand awareness, training of personnel, continuous review of quality standards, and centralized reservation systems.
As of September 30, 2020, we owned interests in 103 hotel properties, 96 of which operated under the following franchise licenses or brand management agreements:
Embassy Suites is a registered trademark of Hilton Hospitality, Inc.
Hilton is a registered trademark of Hilton Hospitality, Inc.
Hilton Garden Inn is a registered trademark of Hilton Hospitality, Inc.
Hampton Inn is a registered trademark of Hilton Hospitality, Inc.
Homewood Suites is a registered trademark of Hilton Hospitality, Inc.
Marriott is a registered trademark of Marriott International, Inc.
SpringHill Suites is a registered trademark of Marriott International, Inc.
Residence Inn by Marriott is a registered trademark of Marriott International, Inc.
Courtyard by Marriott is a registered trademark of Marriott International, Inc.
Fairfield Inn by Marriott is a registered trademark of Marriott International, Inc.
TownePlace Suites is a registered trademark of Marriott International, Inc.
Renaissance is a registered trademark of Marriott International, Inc.
Ritz-Carlton is a registered trademark of Marriott International, Inc.