Brennen assists clients with land-use and transactional matters related to a wide range of development projects. In his land-use practice, he represents clients as they seek local land-use approvals (e.g. rezonings, conditional-use permits and other necessary site development approvals), and as they seek economic development incentives from state and local governments. He also advises local governments with regard to various land-use issues for large-scale development projects. In Brennen's real estate transactional practice, he assists clients in leasing matters, acquisitions and dispositions of developed and undeveloped real estate and with resolving complex title issues.