Profile: Buchanan Ingersoll was a large Pittsburgh-based law firm that merged with Pennslyvania firm Klett Rooney in October 2006 to become Buchanan Ingersoll & Rooney. On May 31, 2007, the firm merged with Alhadeff & Solar. The firm ranked 107th on The American Lawyer's 2010 Am Law 200 rankings of U.S. law firms by revenue, with $265,000,000 in gross revenue in 2009. In terms of size, Buchanan Ingersoll & Rooney, with 461 attorneys, was ranked as the 96th largest law firm in the United States by the National Law Journal's 2009 NLJ 250. The firm's areas of expertise includes corporate finance, litigation, tax, government relations, and health care. The firm has offices in several states in the U.S., including New York, New Jersey, Florida and California.