I think the posters are unanimous in agreement you have no hope in winning such a case.  

It seems unanimous that renting to friends is a lose/lose situation!

As an emergency ordinance, it needed seven votes, and it passed unanimously with nine.Councilmember Alex Pedersen attempted to add a series of amendments, most notably a small landlord exemption, but was decisively repelled by his colleagues in a 8-1 vote.

However, having a CA agreement can have significant benefits in your case to govern possible disagreements or future issues with your friends such as who can transfer your ownership interest, what if one person wants out and the others want to stay, what if the entity needs money but only one party can provide funds, what sorts of decisions require unanimous agreement and which can only one person decide, what dollar amounts require two signatures on a check versus one signature, etc. 

Supreme Court unanimously held that a county's retention of the excess value of a home in a tax sale violated the Takings Clause of the Fifth Amendment.

The law removed the courts stance on pitbulls and removed liability from the landlords entirely.And if I recall correctly, the vote was unanimous, showing just how rediculous the courts decision was in that case.

Any sale, lease, or re-lease of any portion or all of the Property, any negotiation or re-negotiation of indebtedness secured by a blanket lien, the hiring of any property manager, or the negotiation of any property management agreement (or any extension or renewal of such contract) must be by unanimous approval of all Co-owners.

I think the consensus is unanimous.

He's already bought out several unhappy members, and I'm not sure if a unanimous vote against him by remaining members would be enough to vote him out.    

Unanimous or simple majority?