A federal judge indicated Friday that he will not rule on an attorney’s motion to withdraw as a prison inmate’s court-appointed counsel until he further assesses the case’s merits.Hinshaw & Culbertson LLP partner Thomas D. Lupo’s July 13 motion to withdraw states that while the firm does not represent the Lake County Sheriff’s Department in Vandalia Correctional Center inmate Calvin Wiggins’ lawsuit against the department and several department staff, it does represent several …