@Helen3694
Yes, you can list the property and clearly indicate that only over 55yrs old are allowed due to the HOA restrictions. You should put this in multiple places on the listing including the description and House Rules and don't use Instant Book. Guests will send you a message requesting to book and you can then confirm with them that all guests staying are over 55.
Age Restriction Exemptions
https://www.airbnb.com/help/article/2867
