unusual situation.. vacating a condo

[Jhansi B.]

We are in an unusual situation. We purchased a condo for my stepson for him to live there and the agreement is for him to pay for the association dues, property taxes etc (the cost to maintain a home).. His mom also moved in with him and now they don't want to move out. They haven't paid any money in the last two months.

this condo is in a community where rentals are not allowed, to make things worse we installed a laminate floor after purchasing and it is against HOA rules. Now they are charging penalties every month and we don't have access to the property (locks were changed after they moved in)

What is the legal way to have them vacate?

Thanks