Condo HOAs practically has the powers of God!!! They can ban pets, plants, types of vehicles that can enter the premises, and much more. And if you don't pay your HOA dues after an extended period of time (assuming you bought the unit and not renting), they have the power by law to foreclose on your unit.
For example, let's say your monthly dues are $150 a month and you didn't pay for 18 months. This is a total of $2700. Let's also say that your condo is worth $100,000. The HOA has the omnipotent power to foreclose your property, and put in an auction to the highest bidder. Let's say that your unit was sold for $50,000. The HOA will collect the $2700 of dues plus numerous other fees, and send the balance to your mortage lender (if you have a home loan), or to you if free and clear.
Lesson: Do NOT ever take the HOA lightly or for granted.