It's not just about the Xs and Os; mindset is the key to success in this business.I'm happy to answer any specific questions or share my experience further- feel free to DM me.

The biggest key to you doing a refinance will be to target your monthly savings. 

Simplify as many standard processes such as online rent payment, leases, apartment turns, paint, and other materials, and re-key all locks to a master system.

Let me break down a few key points and strategies to help you out:Fix-and-Flip Loans (90% LTC / 100% Rehab): When a lender says they’ll finance 90% LTC (Loan-to-Cost) and 100% of rehab, they mean they’ll cover 90% of the total project cost, which includes the purchase price and renovation.

Account Closed I think this is the key point. 

Am I missing out on a key detail?

The key is to START. 

I’m looking to purchase a duplex in Charlotte, with one unit being turn-key and the other in need of repairs.

By way of example, I picked up an oceanfront condo in March for $640K, minimal work needed to be done, only changes for my aesthetic/brand purposes and here they come turn key so only updated what I really needed to (which also gives you an opportunity to cost segregate).  

In this down market, finding someone with experience is key.