How to Make an Offer!

[Patrick Barker]

 There is a house in my neighborhood that has been sitting for a few months and I would like to make an offer on it, my RE agent says I need to get pre-approved for a conventional loan in order to make an official offer.  The problem is I don't think they will accept my offer right away but will come back to me later on if it doesn't sell at their price.  

How do I make an offer to let them know I am interested without going through the process and paying application fee's in order to get pre-approved?