When dealing with res sub judice cases in court, common mistakes to avoid include initiating parallel proceedings in different courts, which violates the rule, or raising the same issue in multiple forums, risking conflicting rulings. Another mistake is failing to stay updated on the case’s progress, leading to missed deadlines or unnecessary motions. To manage these pitfalls effectively, legal teams should closely monitor the ongoing case, ensuring that all actions are filed within the correct jurisdiction. Lawyers should also advise clients against pursuing related legal actions elsewhere and ensure any appeals or motions are properly handled within the current proceedings, avoiding delays and maintaining the case’s integrity.