@William Eric Schaefer
As steve said, it would help to make sure that you can do this type of transaction in the first place.
This is my experience so far in MO.
Doing research on this issue myself, it seems that certain title companies do not do dry funded double closes because they are uncomfortable with performing such transactions. If I recall correctly, dry funded double closes have been misidentified as mortgage fraud in the past thus leading to excessive concern. There are other title companies that have no problems with these sorts of transactions, so try and find those types of companies. I personally found one and have to re-verify on the second company I talked to recently.
If you cant find one, you are going to need transactional funding to officially "purchase" the property and the resell it in a few minutes to the end buyer. Of course, you incur more fees so keep that in mind.
Also talk to a real estate attorney when writing your purchase agreements. Make sure that it is someone well versed in wholesale transactions who can help you structure the contract verbiage. I would recommend telling both seller and end buyer exactly what is going to happen. It seems that way you avoid fraud by inducement since you have laid out exactly how the transaction is going to happen.
Hopefully this helps, I am new to this game myself so I will try and share whatever info I can.