The rights of a foreclosed upon owner are different from a tenant of foreclosed property. the former owner (you) can be evicted on a 3-day notice, whereas the tenants are entitled to 90 days notice.
What would be the basis for you seeking to vacate the judgment? Presumably, this was not a default judgment since you answered, and you were properly served with the summons and complaint for unlawful detainer. It does not appear you have any option to vacate the judgment or to appeal if your tenants continued in possession of the property for 8 months.
Frank W. Chen has been licensed to practice law in California since 1988. The information presented here is general in nature and is not intended, nor should be construed, as legal advice for a particular case. This posting does not create any attorney-client relationship with the author. For specific advice about your particular situation, please consult with your own attorney.