I did reach out to Cozy and their response was more along the lines that once the tenant initiated they would have to return the funds to tenants bank but advised that our individual lease agreement should speak to this as chances are the landlord would have to pursue legal channels to recover money justly owed. 

The fact that this is your home changes things, both legally and from a "what I put up with" perspective.First and foremost, it's your home. 

If you're under contract with a realtor and you've signed a buyer agency agreement then you are only legally able to purchase a property while under contract with them.

If one owned a 4 plex that could legally be converted to  5 plex would you do it? 

Many members are experts in their respective fields related to real estate investing, whether that is real estate brokerage, wholesaling, flipping, buy and hold, lending, self-directed IRA and Solo 401k investing, or tax and legal guidance.There are some pretty cool discounts on various products and services offered as Perks to BP members that you might want to check out: https://www.biggerpockets.com/perks/proIf you haven’t checked it out already, the Bigger Pockets blog features links to their awesome podcast and many great articles: https://www.biggerpockets.com/renewsblog/

We could also use the attorney as the trustee, but that is sure to generate legal fees.Anyone on BP have an opinion or rule of thumb on this?

In 18 years in Real Estate, I can't tell you how many properties I've walked into and encountered someone who wasn't legally supposed to be in the property.

LLC is legal entity that has "chameleon" like features for income tax purposes. 

At least legally.

My reason for mentioning a trust is if you cannot legal transact a deal because you are not 18, then I would think a trust could be set up.