WILLIAM J COSTELLO II has been a resident of the Town of Grand Island for most of his life, having attended Huth Road Elementary School on the Island for fifth grade, and continuing in Grand Island Schools.  He is a graduate of Grand Island High School, the University of Rochester and Albany Law School. He has conducted his law practice on Grand Island for over 35 years as a sole practitioner and in a partnership for nearly twenty years.

Throughout his long-standing residence on Grand Island, he has served the community faithfully, with his reputation bringing him new clients from across the Erie and Niagara counties.  He is admitted to practice in all Courts throughout New York State, including Federal Courts.

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