Nickle and dime her on the deposit.Lastly, document everything day-to-day just in case court proceedings come into the picture.Be firm, yet gentle.

(Turbo Tenant) I truly feel you guys gently helped me unwind my ball of nerves and with your note above, your company has obviously hired some awesome employees. - I barely heard from the previous company this morning and they didn't even address my woes, completely numb.  

That being said, if your tenant doesn't move out when the due date comes, just gently inform them that you will file and eviction that day.

You could use a moisture detector to test the area in question.

Address the water/moisture problem first, then remediation.  

The inspector estimated it could cost anywhere from 2k-10k to fix depending on the moisture damage. 

If they feel like their is mold although someone has already inspected for that ... you can get one of those water scanner things (sorry I have no clue what it is called) but it essentially checks for moisture (it shows certain color based on the moisture) also I would remove the base boards and cut about a foot of the dry wall to see if that is wet.

Furthermore, bad installation of siding seems to be more common than not and results in damage to the structure over time from water and moisture infiltration. the best part is, you don't know it until it's beyond a simple fix because all that lovely plastic siding is hiding telltale indications of problems.

(from our core rental agreement)Mold may grow and exist in any structure where there is, or ever has been, a presence of moisture and a food source for mold to grow.Its presence may exist without the knowledge of the structure owner and may be concealed from the untrained observer.Some varieties of mold are toxic and may cause adverse reactions in certain individuals.Tenant and Landlord will complete a Mold and Moisture Hazards addendum that will become part of this rental agreement.MOISTURE AND MOLD.

Here in PA, the disclosure form specifically states ‘do you leave knowledge of...’With that wording, it’s hard to say you (she) doesn’t have knowledge of moisture/water problems.