Illegal Dock??

Hi:

I would like opinions regarding the dock next to my property. Here is some information:
1. The property is privately owned. It has 100 feet of frontage.
2. Although privately owned, it is part of a 35 house association.
3. This dock is about 80 feet in length and has 3 fingers coming out at 90 degrees.
4. Currently there are about 18 boats (under 24') there. Some call it a marina!
5. The property is undeveloped and the elderly owner has allowed the members use it for dockage.
6. We are in a secluded cove, away from most of the public eye.
I do not what (if anything) I can do about this... Thanks. Dusty.