I am in the process of purchasing a condo. There was previously a HOA in place but 3 of the 4 owners either sold their property or foreclosed. Now, there is technically an HOA in place but it is not active. The 4 condos are on a city street and as such, the common area is limited to a few square feet of plants. They want to charge each unit $275/month. My question is, will I be obligated to pay this fee if I am purchasing the condo at a time where the HOA is not in effect? Can they knock on my door weeks or months after I purchase the property and demand I sign up for the HOA and pay the (what I believe to be excessive) HOA fee?