Do I return deposits or not

[Darlington Agu]

I currently have a tenant that occupying one of my properties, she's paying rent on time and arguably has been a great tenant. Unfortunately I received a call from the HOA regarding my property as being used temporarily house patients. I had no idea that she was doing this. I called the tenant to ask what was going on and she stated that's she's been doing this for years and runs her business out of several homes. The tenant states that there are two there homes across the street doing the same thing and she doesn't understand why the HOA is comparing about my property. I informed her I would check with the HOA and see what are their guidelines. The HOA has a guideline stating that the residence must be used as a single family residence only. This is an amended guideline which I wasn't aware of when I purchased the property. The tenant is lease ends in May but she is requesting to break the lease now and have her deposit returned in full. I'm not sure what I should do here , allow her to continue her business there as she has statuses that she wants to remain in the property till May or have her leave the property and return her deposit (I believe she isn't entitled to her deposit back because she broke her lease )

The property is in Houston Tx any advice would be helpful