Issue Preclusion Elements
Determination of an issue of fact or law in one lawsuit is conclusive (and cannot be re-litigated) in another action where:
1. Issue of fact or law is identical in both lawsuits;
2. The issue was fully litigated and decided in the first action;
3. The issue was determined by a valid and final judgment;
4. And, the determination of the issue was necessary to the judgment in the first action