has to be irrevocable living trust

Read this article.

http://www.nolo.com/legal-encyclopedia/do-living-trusts-protect-assets-creditors.html

Your goal is to have your asset shielded from creditors (after winning the lawsuit, plaintiffs becomes your creditors). You cannot do that while in control of your money. Irrevocable living trust means your trust is no longer controlled by you.

Your best option is to buy insurance.