QA/Testing - Need to QA our entire website

We need a QA person for Testing a website we created for our client. More future work available if this project goes well. We are looking for someone who is technical as well as can find out mistakes on a rather large website we created. We need a confirmation first that the entire website is working fine and only then will we send you the money (we can escrow it if you like). Someone who is an expert at this and uses complete documentation. Please send us your past QA work.