Basically, using the LLC is good practice to get into and helps immensely with keeping your books straight in the event of an IRS audit.

Account Closed, Doing a quit claim on either side probably isnt necessary or advised - if for no other reason than an inexperienced field agent in an audit could possibly try to claim that you were changing the tax payer to avoid tax. 

You don't need audited statements.

In fact during my 2 iRS audits (2010, 2011) the (documented) high mileage deduction came up, but was allowed.

Plus, ask them how many audits they have been through.

Clients who, I am proud to say, have never once been audited due to the tax positions I've recommended to them.  

It's already been said, rather well, but I will echo @Amy Beth and @Rick Pozos - you need to do, or have someone do, a serious personal finance audit. 

In my recent IRS audit, the agent appreciated that point. 

In an audit, you’d need whatever info they demand.  

That said their customer service and auditing department must not have computers because its very difficult to speak to them.