Each individual condo assocation will charge fees specific to their own complex/community. These fees may emcompass charges for snow removal, maintenance of lawns/common areas/landscaping, trash removal, etc. I've seen fees range from minimal amounts to exhorbitant fees, all depaneding on location and amenities. It's best to have your agent contact the offices or agent(s) associated with the specific properties that interest you to find out the exact fees.
If I can help you research fees for any specific properties, please do not hesitate to ask.
Prudential Connecticut Realty