CALIFORNIA FAMILY LAW
...Procedure After Trial/Hearing
......Attack on Judgments/Orders
.........Res Judicata
5 Cards On This Topic:

A trial ct. determination that evades appellate review cannot be given preclusive effect in subsequent litigation.

Issue preclusion discussed.

Res judicata involves both claim preclusion and issue preclusion.

H precluded by res judicata from litigating concealment defense a year and a half after arrears set in stipulated judgment.

Denial of writ of mandate or writ of prohibition without opinion is not a decision on merits so has no res judicata effect.