A suit in Morris County appears to be the first instance in New Jersey of one legal-malpractice attorney suing another for defamation over criticism in a blog posting.

The suit, Michelson v. Voorhees, MOR-L-2694-11, filed Sept. 23, concerns William Voorhees Jr.’s comment about a case in which William Michelson provided an expert report that a court deemed an inadmissible net opinion.