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Unless you want to be stuck maintaining an actual web site, WordPress is probably the answer. Evidently, and idiot can design/maintain a Wordpress web site.
".45 ACP - because shooting twice is just silly" - JSOP, 2010 ----- You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010 ----- When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013
You might look into the NextDoor app. I don't know a lot of details, but it sounds like it was made for exactly what you are wanting. My neighborhood uses it, but it is generally just a localized Facebook to let everyone know when a dog is running loose or someone complaining that cars drive too fast during school bus times. I know the app has a documents section, but our neighborhood isn't organized enough to make use of that.
I've not used wordpress but, probably a step up in capability if that doesn't suffice, is something I have: DotNetNuke[^]
Then, for hosting, there are some hosting providers that sorta specialize in DNN hosting. I am currently using (1 personal, 1 for a religious organization) 3Essentials[^] and DNN4Less[^] that I have no complaints about.