Over the last hundred years or so, people have been trying to run their meetings using Robert’s Rules of Order. They are designed to efficiently run a meeting but not necessarily to facilitate the making of decisions. They can be cumbersome, so many groups often don’t adhere closely to them.
And, perhaps worse, sometimes people spend too much time trying to figure out the rules of running a meeting instead of doing the actual work of the organization.
You might want to consider a different structure.
Check out the book Breaking Robert’s Rules: The New Way to Run Your Meeting, Build Consensus, and Get Results by Susskind and Cruikshank (Oxford University Press, 2006) for an alternative method of running meetings. Their “Consensus Building Approach” works especially well for organizations that are less formally run and more committed to humanizing their work.
Consensus does not mean that everyone always has to agree, but rather that the group makes a decision that everyone can live with.
In addition, it allows the minority of members to have their voices heard during the process. This leads to unification better than having a vocal and dissatisfied minority.