Tenant/Dog Issue - House smells like dog urine, is there recourse

[Ray Hayward]

I am renting a single family house to a woman and her dog. After a recent visit, as soon as I walked into the house, the house has a strong odor of dog urine. This is causing challenges for me because she will be leaving her tenancy and we have listed the property on the market. I have asked her to clean the property and she has not. As result, we had showings and this is clearly a detriment.

Do I have any recourse if she does not cooperate? In general, our relationship has been positive until we started showing the house as I/we know she is not happy about the inconvenience. To best accommodate, we are only showing the house on specific days and times.

I am really curious to know if I could hire a cleaning company to come in and clean, though I am not sure how far I could get with this since her personal belongings are in the way.

If we cannot clean now, can I hire a professional cleaner upon her departure and withhold security deposits?

In MA.