And what happens if her sis and Beau breakup?

Thanks  Sign separate leases with the aunt, each of you renting it per room with access to common space, so that when you guys break up and you move out the aunt doesn't have to be faced with either evicting her niece or having to accept the niece not paying anything to stay there.

Can you execute your plan immediately or do you have to get the lot Rezoned and breakup the parcel?

Your money will eventually run out and you will not need her knowledge as you gain your own, a break up is coming eventually.Personally I do better with being in charge, managing my property myself and hiring out the work I do not do myself. 

I don't know what you guys see on facebook- all I see is a load of humble-bragging parents, holier than thou sinners and dedicated lovers a week away from a break-up.

When I break up the principal, interest etc do I have to setup any special fields.

Partnerships are also difficult to break up when the time comes unless both agree and can agree on appropriate distributions.

I’ve seen and experienced these issues break up friendships and cause these types of JVs dissolve.Good luck!

Break up the security deposit over the first two to three months rent. 

As an example, I pointed to one of the expenses being the break-up and re-pouring of concrete for the driveway.