Andrew P. Van Osselaer

Andrew Van Osselaer represents commercial policyholders in disputes with their insurance companies, defends clients against environmental liabilities, and advises on insurance solutions to risks identified in business transactions.

Andrew advises clients across all lines of insurance, including general liability, environmental liability, professional liability, property, and D&O. Andrew is not only practiced in litigating recalcitrant insurers’ coverage and defense obligations; he routinely defends policyholders against accusations of misrepresentation, pursues insurers for deceptive claims-handling practices, and helps clients navigate difficult claims-handling processes, including where multiple policy years and multiple insurers are involved.

In the environmental space, Andrew not only has extensive experience pursuing insurance coverage to fund cleanups and compensate for harms associated with environmental contamination; he also advises clients on improvements to their existing pollution coverage and on insurance solutions to environmental risks identified in business transactions. Beyond insurance, Andrew also defends clients against environmental liabilities, including under RCRA, CERCLA, and FIFRA.

Andrew is a frequent speaker and author on subjects pertaining to insurance coverage and environmental law, including matters related to per- and polyfluoroalkyl substances (PFAS) and other emerging contaminants. He is Chair-Elect of the Austin Bar Association’s Insurance Section, Co-Chair of the Environmental & Energy Subcommittee of the ABA Insurance Coverage Litigation Section, and a planning committee member for the Texas Bar’s Environmental Superconference. Andrew was also recognized as “One to Watch” by Best Lawyers in America, Woodward/White, Inc. in the area of Insurance Coverage and as a "Rising Star" by Super Lawyers, Thomson Reuters.

Before joining Haynes Boone, Andrew graduated from the University of Texas School of Law with High Honors, where he served as the Managing Editor of the Texas Law Review and was a member of the Chancellors and Order of the Coif honor societies. Prior to law school, Andrew worked in the music industry as an audio engineer and concert lighting designer.