A legal battle has erupted between two Bergen County personal injury firms over the alleged breach of an agreement to pay referral fees for cases that were shared.

The Fort Lee firm headed by Jae Lee claims in a lawsuit that it had a written agreement in 2010 with the Ridgewood firm now known as Seigel Law for referral of personal injury cases. The terms call for the Seigel firm to pay Lee’s firm up to 30 percent of its fees from cases it received, the suit claims.