Herzfeld & Rubin has brought a lawsuit against a client’s son whom the firm claims is attempting to extort money and is defaming the firm through online postings.

Herzfeld & Rubin claims that Joel Leyden has "illegally appropriated" the law firm’s name by registering a website with a domain name nearly identical to its own and posting fictitious news articles on other sites claiming the firm is accused of malpractice and has taken $80,000 in legal fees from a trust account. One of Joel’s postings says the firm bullies and coerces like a mobster.