Attorney Martin Heller has been appointed by a federal judge to oversee the dissolution of the Haymond & Lundy law firm now that the principal partners are suing each other in back-to-back lawsuits alleging racketeering, fraud and breach of contract.

“The complexity and urgency of the matters in this case warrants the appointment of a neutral court representative,” Senior U.S. District Judge Norma L. Shapiro wrote in a three-page order handed down Wednesday.