I hope my regulatory comments were not too discouraging. I just didn't want you to get blindsided. The other approach would be to do it sort of offline, start small, and fly under the radar. Since it would not be a profit-making business, it may be in a gray area or not addressed by various regulations. I really don't know where a neighborhood cooperative composting operation would fall in your state/county/city. It may not be a big deal.
One can make generic inquiries, for example at the state environmental agency. You can tell them you're thinking about it and researching it. You don't have to tell them where it would be or even who you are, but you can ask questions about whether or how such an activity would be regulated. I get calls like that all the time (although I'm in a different area than solid waste and composting). Regulators appreciate when someone actually asks the question.
We have a juice bar downtown that saves its food waste in Rubbermaid tubs. Anyone can ask them for some and they will give you all you want. If it stacks up and no one takes it, the owner takes it out to his farm and composts it. He has more than he needs, so he'd rather give it away, but it keeps it out of the landfill. It may actually be in violation of some solid waste or commercial compost facility regulations, I don't know.
The important thing, of course, is that it's run right: no runoff of organic-rich oxygen-depleting leachate into waterways; no varmints eating food waste; odors controlled, and that sort of thing.
Our city has yard waste dropoff sites where they shred limbs and such into mountains of free mulch. The city got in trouble with the state a couple years back for runoff. Both sites are right next to waterways. So they put berms of wood chips around the outside to direct and filter runoff, and made catch basins for it to collect and evaporate or soak into the ground. No more problems. It's really not that hard to do right.