I don't like the pictures that were taken.  Do I have to purchase all the pictures taken during the photo session?

No, You only have to pay for the pictures that you have picked out to be processed and shipped.  You'll never pay for pictures that didn't turn out or pictures you don't like during the photo session. 

Will you come to any location of my choice?

 Yes, with in limits.  S. Helen photography will come to you within a 50 mile limit.  Anything over the 50 mile limit there will be an additonal fee.