> people enter them willingly? Sometimes a developer builds a group of homes, offers parks, gym, walkways, street lights etc, and until all homes are not sold

> people enter them willingly? Sometimes a developer builds a group of homes, offers parks, gym, walkways, street lights etc, and until all homes are not sold yet, or build, manages those common things. Buyers of those houses willingly by a house with a perspective HOA. Once all homes are sold, developer hands over the maintenance responsibility to group of elected home owners. Now if a colony already has a HOA and somebody sells their house, the buyer has to be in the HOA in most of the cases, very few exceptions like if seller fails to disclose that it's HOA, seller does not give the HOA paperwork to sign and such. I think there's a price difference also between a HOA homes and non HOA homes.