Out of curiosity, do you plan on acquiring the property in your name using say an FHA loan like @Mindy Jensen suggested and perhaps transferring it into an LLC later, or will you as a newbie purchase under an LLC or other entity structure?

Some of these providers transfer the properties early when the renos are not complete, or they are simply just agents using the MLS to find you homes.True providers own the homes already and do all of the work personally.

If you have it just between joists, the sound will transfer through the joists into the downstairs unit.

I know there's some paperwork to transfer the owner of record, set up bank accounts, etc.  

Am I able to give him a down payment and transfer title to me and my seller still have the HELOC on his part?

I like the larger banks because they have locations at many places and also offer easy money transfer services like chase quickpay, which makes it easy for tenants to pay their rent.

I was very wary, for instance, of the apparent subject-to transfers into an LLC.  

As soon as you find someone local to you that can speak intelligently on the subject, boom now you have rate/term refinance closing costs instead of purchase closing costs (I do not know anything about Georgia property/transfer taxes, so those components may still be there, IDK).

Both takes few days to transfer the rent (eRentPayment (3 busness days) and Cozy (5 business days)) so the tenant should be making the payment prior to 1st of month in order to get the payment made in time. 

We have asked for the security deposit to be transferred, however the original lease was misplaced when the current owners husband (who managed their properties) passed away several years ago.