CfD is a legal contract between you and a buyer (aka your tenant) that states for $x down (secuirty deposit) and $x a month (monthly rent) for x months, they can live in the home.

Some states/cities legally require you to renew leases if they have not violated one of the "for-cause" eviction criteria (destruction of property, late/no payment, violation lease, etc.)

Some states also require an annual license fee to own and operate an LLC so that could also cause a potential for increased costs there as well.I would consult with a real estate attorney to see if an LLC makes sense from a legal standpoint and advise your accountant as to your decision so the appropriate tax filings can be made. 

I am not sure if an attorney review will help with this, specific, basic level of knowledge.Just like an attorney likely won't call out, from a legal perspective, that you are investing with a sponsor who is 23 yrs old and been a residential loan underwriter for 8 months before trying to piece together a syndication.  

While it's not common for lenders to enforce this, it's still a risk.Lender Discomfort: Since the loan stays in the seller's name, if the lender becomes aware of the transfer, they may become uncomfortable with the arrangement, potentially complicating the process.Seller Risk: The seller is still legally responsible for the mortgage.

Bandit signs are not legal in most areas.  

I believe an emancipated minor CAN sign a contract is they are legally emancipated not just that they moved out of their parent's home.

However, structuring this in a way that complies with tax law would likely require expert legal and tax guidance, as it involves partnership agreements and IRS regulations.

Be safe, know the law, stay legal.

In the process of coming up with a legal agreement between us, we cannot figure out how to address when we have differences on how to solve disagreements on repairs.