Michael Guararra and Michael Zaitz first worked together in 1988 when they were both in the litigation department at Huber Lawrence & Abell, a then prominent boutique firm in New York. After practicing there for ten years, Mr. Guararra left HL&A to create a litigation boutique firm specializing in tort/product liability defense and commercial litigation for companies in the manufacturing, real estate, and health care industries. Mr. Zaitz also left HL&A in 1998 to join the New York office of the international law firm of Vinson & Elkins LLP where he continued his representation of clients in various industries including the software, media, securities, shipping, telecommunications, and insurance industries.

In January 2003, they formed Guararra & Zaitz.