Beta tester for revamped website

We have a long-running online service which helps people notify as many as 100 organizations of their change their address when they move.? Our site has undergone several changes and we wish to have someone who is thorough and reliable to check all functionality for bugs, logical errors, grammar/spelling errors, and perhaps suggest any improvements. The basic testing would be done on all pages starting at? <[login to view URL]>? ? Also, the enclosed document gives you a minimum on what we would need to check for, but is not all-inclusive, as many bugs can arise that were not there before.? We are looking for a long-term relationship with someone who can do this perhaps once a month as new versions of our site continue to be released. Please review the attached document as a guideline for what bugs/fixes to check for.? Emails can be CC'd to your address to check email functionality as well.