Lane Kawoka has done just that, and has tips to share that will help outline the basics.

For those still on the fence, I outlined the purpose and benefits of the meeting/group.  

These are a couple of questions that can help you through your current scenario as it seems like you guys haven't outlined all of your objectives you may have for the future. 

If the tenants are children, they'd have to be added to the lease for a rent increase of $X per tenant.The fee for additional tenants would be totally up to you and should be a significant amount as it would set a precedent for the other 5 tenants to potentially move someone in (i.e. their children, spouses, siblings, etc.).In Brandon Turner's book on managing rental properties, he shares a 'Rules and Regulations' form that can be used for your situation which outlines the rules on Occupancy.

You will want to develop a formal system for collecting rent and make sure you outline all rules, terms and expenses in lease agreement.

I think it outlines perfectly some of the risks that come with lots of “low and no money down” investing.

Judge:  So you were aware some kind of agreement was made but you did not get the details of that agreement, and nor did you get an estoppel letter that would have outlined the agreement the two other parties had.....is that correct!  

What does your lease outline as far which utilities will be the responsibility of the tenant and which will be the responsibility of the landlord?

If the rental or lease agreement has been violated, take the steps outlined in the agreement to correct it.  

It's probably not great for super detailed insight, but it will definitely give you an outline of most major economic concepts, and it also cites a lot of the biggest thinkers and their contributions.