Security deposit claim

[Maria Mccarthy]

We have a tenant that leased for one year.  She had a no pet clause yet unbeknownst to us brought a cat in.  There were uncleaned litter box during an inspection.  We had a a broker present too.  The smell was terrible.  When she moved out , we sent notice of non renewal that week, she cleaned with significant pine sol smell.  Two independent people plus the new tenant said the smell was significant despite our efforts.  We had to tear out the carpet and padding, deep clean and laid out vinyl.  The smell remained for awhile even after that hence one reason we didn’t reinstall carpet.  

She did not provide notification of forwarding address as required by the lease AND the state of Michigan.  4 days yo be specific.   Yet  over 2 month later she’s asking for a status.  

How would you handle?   Thanks in advance.  We spent significantly more than the amount of deposit. 

Thank you in advance!