The EFF is really just about one topic though (privacy on the Internet, for those of you unfamiliar with their work). I’m sure some other orgs have their own topics they have written model legislation for. ALEC writes for everything on the GOP agenda, and I think that’s what OP was getting at - a universal writer. But I don’t think there is one. Perhaps because the Left is very broad in it approaches to stuff, comparatively? So it’s harder to nail down the language everyone would agree on? Or maybe it’s ideological from the Dem party, that they don’t want that kind of centralized writer for issues that have nuance. No clue, this is a really interesting question from OP.
Lol, I have 8 nibblings. It’s always been a chore.