I agree with you completely - it's the analysis that matters; the wrong conclusions can lead to serious mistakes in judgement.

Then, if awarded a judgement, you'll want to file a wage garnishment.

How many landlords are actually going to waste money on lawyers and take their former tenants to court afterwards and try to obtain a judgement? 

What is a deficiency judgement? 

@Keith AnnisI'm not an attorney, but I don't think you need to prove anything to impose a fee that is a legitimate provision in your lease.I think it would be on the tenant to challenge the validity of it in court as a defense to the eviction you file for nonpayment of the fee, and the judge would then make a judgement based on both sides of the story (your explanation as to why you believed it to be occurring, and the tenant's explanation that it was not).

If, upon obtaining a judgement in an unlawful detainer, the tenant does not vacate the premises, follow the law and have the sheriff assist them in leaving.If there is more to the story, do tell please. 

Give the tenant written notice that you will be filing eviction and seeking a judgement as soon as the law allows.

I would not try to do eviction myself, there are so many things that could go wrong and you'll have to restart this process again (in the best case) or will have to pay fines (in a worse case).Total eviction cost depends on many factors, e.g. if you need to go to the court or tenant settles, default judgement vs hearing, etc.

She may have to risk you filing a judgement.

@Kevin Stringari I have listened to interviews with one of the owners of those security deposit insurance companies and most of the time they will not pay out a claim unless you have a monetary judgement.