Any concerns with paying cash "naow", before securing financing?

[Ryan Bissell]

Suppose you're just getting started, looking for your first investment property.  You stumble upon what you believe is a killer deal, and you don't want to lose it.  But maybe you are literally so new at the game that you aren't even pre-qualified with a bank yet.  Nor have you established yourself with any HMLs.

Maybe you happen to have just enough cash to buy said property, free and clear.  But it was never your intention to sink most of your capital into 1 property, you intended to leverage your way into several, in your first year.

Is there any disadvantage in paying in cash, before you've lined up financing?  Will banks look upon such a loan differently, than they would a  loan that they originated during closing?