A Bank or a warehouse as new building ?? It would also be useful to involve all the players of the guild, especially when it comes to donating to activate the various services. Everyone can donate and maybe the officers use the resource donations, EP, BP, to activate the services. also could go in this building, the looted resources in assaults on rival captains, when you have the full deposit. looted resources that are lost.
or even where everyone can make donations of resources to the various players in the guild who request it. low interest rate