DISCLAIMER: I'm not a lawyer, nor do I play one on TV. The way I read this is that they need to get 100% of all the land owners approval in order to then pass 'rules' on a majority basis. I cannot imaging that they can arbitrarily change it so that they can impose membership in a homeowners group on those who do not want to be involved, simply on a majority vote of the neighbors. The 'rules' do not become manditory UNTIL you agree to accept the 'rules' by voting to join the association, or by purchasing a property within an existing homeowners association. I cannot imagine that they can force you to join.
A majority of the total membership interest of the Group, in person or by proxy, shall constitute a quorum for the transaction of business at any meeting of the Members.
What this means is that the group must have a majority of the members present in order to conduct business.
If you want me to look at the actual paperwork, you could fax or e-mail it to me.
Becky