David advises clients on environmental, sustainability and mass tort liability issues in connection with all aspects of complex corporate and real estate transactions. He has worked on transactions relating to a wide variety of environmentally sensitive industries, including oil and gas exploration and refining, transportation, consumer products and chemical manufacturing.

Outside of the transactional context, David advises clients on compliance with environmental laws and regulations, development of internal environmental policies and procedures, assessment of environmental and mass-tort risks and liabilities, managing environmental liabilities and compliance obligations in bankruptcy, and contractual disputes and enforcement proceedings relating to environmental matters.