Lawyers argued Monday over whether a former state judge who handled affordable housing cases should have at least one of his rulings overturned because of his relationship with a developer.

In Trenton, a lawyer for South Brunswick Township squared off against a half-dozen others representing developers and affordable-housing advocates. The township is seeking to have affordable housing rulings made by now-retired Middlesex County Superior Court Judge Douglas Wolfson vacated because of what it alleges is the appearance of a conflict of interest: Wolfson’s acceptance of vacations from, and current representation of, Edgewood Properties.