Inspection contingency on new construction situation

[Eric Healy]

Hello,

I'm in a of a bit if a situation and was hoping someone here might have an answer. I have been under contract for a few months now for a new townhouse that is currently being built. I need the option to get out of the deal now and thought I could use the inspection contingency. Looking at the paper work, it says it must be used with in 7days from mutual acceptance. Well this 7 days passed long ago but the townhouse isn't even done yet. How is this possible? Shouldn't the 7 days start once its complete? You cant inspect a house that doesn't exist yet. Any help or advice would be much appreciate as I do not want to loose my escrow money. If it helps, I'm in Washington state. 

Thanks!

Eric