William "Bill" Greenhill advises corporate decision makers, in-house counsel, and financial industry executives on structuring complicated corporate and financial transactions to promote their business objectives. His clients include established public and private corporations involved in debt, equity, and merger and acquisition transactions; financial institutions involved in structured financings; start-up companies whose goal is either to "go public" or to build up their business to become attractive for purchase; and businesses, including underwriters, borrowers, collateral agents, and trustees involved in sophisticated taxable and tax exempt municipal bond transactions.

During the course of his 30+ years of practice, Bill has also assisted large corporation, start-ups and emerging businesses in navigating the securities/capital markets and the complex laws which regulate them. Bill also advises clients who deal with land use regulation and zoning issues on a state-wide basis.