Sir Humphrey’s advice is spot on but I would add that you should also add a motion to rescind all the by-laws that your feel are unfair – or oppressive, discriminatory or unconscionable, to use the language in the Act.
That way the Tribunal can see that you don’t just want the model by-laws, you want to be unshackled from the pro-developer ones.
Again I think consulting a lawyer is a good move – your developer is a bully and you sound like you need someone to fight your corner.