Do mention to the real estate agents that your finances are "ready to go". More often than not it is the R/E agent who decide what offer they put forward (to the owner). R/E agents like to "pick" offers that suit them too. The faster they are able to settle, the faster they get their hands on their commission. So do mention your money is available straight away. Good luck
Real Estate agents HAVE to present every offer made, if they don't they are breaching their contracts.