Double Closing ~ What the %*#(@%*

Coming from New Zealand, contemporaneous settlement, 

(what y'all call double closing) is 

very common.  It is a standard way 

of buying and selling a house using other peoples money.

I assumed, wrongly it would appear, that the rest of the Western world including the global seat of capitalism the USA would also find this a normal way of doing a real estate transaction.

Maybe it's a city/state thing but in Memphis some attorneys simply will not do it at all. Some will and some do it but feel bad about it.

One attorney even told me I had a damaged business model and I couldn't do it.

I have written this as a blog rather than a forum question so I can explain myself properly but I would appreciate your comments on this in America.

Why is there some sort of problem with double closing?  Given that all transactions are public record it is not like anybody is hiding anything, it is just an effective way to flip a house and be sure you can control the transaction.

Thankfully I have an attorney who has no issue with it now but why is it frowned upon?

I would have thought the attorneys would love it as they get extra title insurance, extra fees and basically get to double dip on one transaction.

Tell me, what am I missing and why is it such an emotive subject over here?