Each of the cases Jeffrey Rosen has tried has involved an element of design and construction work. Since 1977, he has tried hundreds of millions of dollars in construction disputes. As lead counsel, his experience includes disputes involving:
In the government sphere, he has litigated extras, delays, differing site conditions, bid protests, bid mistakes, fraud, false claims, suspensions, and debarment proceedings before various boards including, the Board of Contract Appeals for the GSA, the Corps of Engineers, the Department of Defense, the Department of Energy, the Department of the Interior, as well as the U.S. Comptroller General. Most notable of those cases included false claim proceedings involving the testing and manufacture of missile head components for the U.S. Department of Defense (DOD) and criminal/debarment/suspension proceedings arising out of the procurement of amphibious tanks for the DOD.