In real estate business, both sellers and renters should be clear about the agreement they draw up before they consent to this plan.

Since the agreement to pay the mortgage isn't an assumption of the loan with consent of the lender, the obligation to pay become a civil matter, the seller can sue for damages if a buyer dings their credit and that can be a significant claim to pay for the bad buyer. 

I told them I needed a deposit (Half of the first months rent) to hold the room which, they verbally consented to this (I have text message records).

There are limits on what each can do without the consent of the other.

Another item is confirmation from the first position lender they will allow registration of a subordinate lien/mortgage {with many residential bank mortgages here, registering a second, especially w/o their consent, could enable them to call the first}.

I never allowed nails in any wall without consent, I have hung mirrors and large items myself to ensure the walls were not scared up!

Which decisions will require member consent?  

Privacy laws in Canada are a little more stringent and do not allow for the assembly and sale of such information without explicit consent (which is seldom forthcoming).

In the state of Texas, the realtor must disclose that to you and have you sign a form acknowledging that fact and giving your consent for them to represent you as the buyer, if they are also representing the seller.

We provided all articles of incorporation and an unanimous consent from board of directors stating that the company was authorized to purchase the property and procure funds for purchase from my partner.