Legal Question in Family Law in California

Post judgment spousal support is based on 5 key vectors: length of the marriage, age of the parties, health history, earning capacity and standard of living during the course of the marriage. It might be a wise idea for your wife to meet with a skilled family law attorney to discuss the specifics of her situation.

The simple answer to your question is that it should be stated in her divorce judgment how long the support will last and whether it can be modified or the end date revised. So you need to read the judgment.