A dismissed conviction can be a conviction for immigration purposes, if there is an admission of facts by the defendant sufficient to constitute the offense. This would typically happen where the defendant pleads guilty, allocutes, and then successfully completes a deferred sentence.
If the stop is within U.S. territory, it's hard to say - it's possible she would be detained. If not, it's normally highly unlikely (but I don't know what the charges were, so....)
Have you tried checking with the landlord to see if he will dismiss the action if you pay your back rent (possibly now with additional costs relating to the litigation)? Have you checked with whatever agency was extending you aid to see if you qualify for emergency benefits which might help you...
Assuming you're still looking, but more realistically for the benefit of others who stumble across this thread, check the California Courts self-help website.
For anybody else who has this question...
The only references I have found to expungements in Iowa have to do with removals from the child abuse registry, or sealing juvenile records under Iowa Code section 232.150. There is, however, material available on Iowa executive clemency.
Once you reach the age of majority you can live where you wish. In terms of whether the school will accept permission slips or excuses for absenses executed by you, that's something to discuss with your school.
Based on the facts you provided, and depending upon departmental policies, I can think of a number of possible arguments which might be used to prevent the fruits of the car search from being admitted into evidence - assuming you did not consent to the search. But it's three years later so you...
The difference between annulment and divorce: An annulment is a decree that a marriage was invalid from its outset. Whereas a divorce brings a valid marriage to an end, an annulment is a legal decree that effectively undoes the marriage, such that in the eyes of the law the marriage did not ever...
You went into the marriage with your eyes open and have waited eleven years to take action (are you still waiting - if so, now thirteen years), so don't count on being eligible for an annulment. You're probably stuck with divorce.
You should have "speedy trial" rights which would be implicated by such a delay, along with a possible "due process" violation due to the delay. It's possible to waive your speedy trial rights.