Frederick Oberlander, a lawyer who has faced criticism and sanctions for filing suits against the real estate company Bayrock Group that contained information from sealed criminal court filings, was ordered suspended from the New York bar for a year Wednesday.

Oberlander has litigated against Bayrock for nearly a decade but was found by the grievance committee for the Eastern District of New York federal court to have wrongfully used sealed information from the criminal case against businessman and FBI informant Felix Sater. Wednesday’s suspension decision, from the Appellate Division, Second Department, was largely based on the federal panel’s findings.