When defending against Constructive Res Judicata, legal professionals should conduct a thorough review of prior proceedings to ensure that the issue could have been raised previously and assess whether the doctrine applies. Identifying exceptions, such as new evidence or changed circumstances, is crucial for challenging its application. Lawyers must file clear and precise pleadings to argue why the issue should not be barred, demonstrating that it was not essential to the prior suit or that it couldn't have been raised at the time. Strategic use of evidence, collaboration with other parties in multi-party cases, and exploring alternative dispute resolution methods like settlement or mediation are also important. These practices help avoid wrongful dismissal by ensuring a well-structured defense, potentially preventing the case from being dismissed and securing a fair trial for the client.