Oh that's a hard one and probably needs a loan officer to really figure this one out. A few things I do know. You can put a second home loan in an LLC when you buy, it has to be in the personal name of the person getting the loan. You can then sub it into an LLC after the fact but do have the chance of getting the loan called out as the home was "sold". I hear this rarely happens but have only done this once so my personal experience isn't there. I would probably have one person buy the property on the loan and then sub it into the LLC with all of you, just know the risk of the note being called due. On another note when it comes to partnership you need to clearly define everything.
How much money is being put in by each
Ownership percentages (equity and cashflow)
Who does what (guest communication, cleanings, upgrade decisions, supplies, etc)
If you don't have clearly defined roles the you get I thought (insert name) did that or relationship issues if you think someone isn't pulling their weight. For example someone may have less of a % because they want passive income and don't want to do any of the work.