For the past 30 years, Mr. Crispin has maintained an active litigation practice, trying cases and arguing appeals in state and federal courts, including the federal bankruptcy courts while practicing telecommunications law before the Federal Communications Commission ("FCC").

He has litigated a variety of commercial disputes including cases involving intellectual property, software licensing, domain names, commercial contracts, business torts, insurance coverage, professional liability, land use, government contracts, and labor and employment matters. He has also served as general counsel to court-appointed receivers and has served as outside counsel to a Fortune 500 company advising on qui tam liability.

In his telecommunications practice, he has represented major cellular and PCS carriers in license disputes with the FCC, including the NextWave PCS license cancellation case and has advised CMRS providers regarding FCC issues as well as related state and local statutes and regulations. He has served as trustee of a liquidating trust to dispose of certain PCS licenses. He has also represented applicants for and licensees of radio and television stations in contested proceedings involving character qualifications and other regulatory issues, and he has advised clients seeking licenses for new technologies under the FCC's auction rules.

Mr. Crispin received his B.A., cum laude, with highest distinction in his major, history, from Dartmouth College in 1968 and his J.D. from the University of Chicago Law School in 1975. Following graduation from law school, he was an associate for three years with the Chicago law firm of McBride, Baker and Coles, specializing in commercial litigation; was trial counsel to the U.S. Railway Association in Washington D.C. for a year in the Penn Central Reorganization litigation; and, joined the law firm of Verner, Liipfert, Bernhard, McPherson & Hand in June 1980 as an associate in the communications law and litigation groups. Mr. Crispin became a shareholder in Verner, Liipfert in 1984, where he served on the firm's Compensation and Associates' Committees. He formed his own firm with Dean Brenner, Crispin & Brenner, PLLC, the predecessor firm to Crispin & Greenberg, PLLC.

Mr. Crispin has been married for more than 20 years; is the father of two children; and served in the United States Army from 1969-71. His wife, Maureen E. Mahoney, is the former Deputy Solicitor General of the United States. He is admitted to the Bars of the District of Columbia, Virginia and, Illinois, as well as the Bars of the U.S. Supreme Court, the U.S. Courts of Appeals for the District of Columbia and the Fourth Circuits, and the U.S. District Courts for the District of Columbia and the Eastern District of Virginia.