Can I charge maintenance or cleaning fees for customers who bring service animals into my business?

No. You cannot ask or require an individual with a disability to pay maintenance or cleaning fees, even if people with pets are required to pay these fees.  Service animals are not pets.  If you normally charge individuals for the damage they cause, you may charge an individual with a disability for damages caused by his or her service animal.  Service animals must be housebroken and under the control of the owner at all times.