A trio of longtime former clients of Schnader Harrison Segal & Lewis are suing the firm after lawyers allegedly neglected to represent their interests in a bankruptcy proceeding. The former clients are claiming millions of dollars of lost benefits and tax liabilities.

Plaintiffs Herbert Vederman, Samuel Sidewater and Steven Sidewater allege Schnader Harrison failed to enter an appearance in a bankruptcy involving their former business, despite multiple notifications of claims they had as creditors, according to a complaint filed Thursday in the U.S. District Court for the Eastern District of Pennsylvania.