SPRINGFIELD — A contentious divorce and a refusal to give up nearly $41,000 in attorneys’ fees could resolve a question that’s split appellate courts and haunted the family law practice: What funds are “available” to be released and distributed between attorneys under Illinois’ marriage and divorce law?The Illinois Supreme Court this week agreed to look into the question, taking up a case in which attorney Laura A. Holwell disputed an order requiring her to give up money she’d been …