@Ken NeusaengerYour strategy has several issues with respect to IRS guidelines.In exchange for tax-sheltered status in an IRA, the IRS rules prohibit any direct or indirect benefit, in either direction, between you and the IRA.Simply from the starting point of you buying a parcel personally and having the IRA buy the rest, you have introduced risk.Any services associated with the property must be performed by an unrelated 3rd party. 

In most State a mailbox would not be enough as you need a person to receive service of legal documents..

Ideally, you should find one that has experience dealing with medical/dental offices since there are some practical considerations to think about on the legal end.  

So I'm new to the wholesale market, I'm slowly getting the hang of how to go about getting leads on houses for sale and generally on selling over to the companies, can anyone help explain more of the legal side (contracts with home owners/contracts with buyers)Thank you for your time

As you've discovered, mortgaging a sub $50k property doesn't pencil out for either party.

We do this all the time in multi family and we submeter through a 3rd party that does exactly what you have notes

That lease is a binding contract on both parties, they have a right to live there for a year under a annual lease.  

May have interested parties.  

You can do it but properly doing it tends to cost a lot on legal fees to do it properly to protect both parties.

Banks also tell me I'd be a bad investment if I were to get a non-legal job in Florida to supplement my income while growing my new firm, since I'd be working far beneath my education level.