Hey there Justin, I have to admit, I have thought about this myself before. Who doesn't want to knock the competition off the first page right? :boxing:
Unfortunately, and fortunately, it's considered tricking the system when you have multiple Adwords accounts with advertisements using the same keyword being directed to the same domain. It creates an unfair advantage to other advertisers that may not be able to afford to keep up, and it may even protect advertisers that may not know the difference.
A good work around is to use keyword planner and find those low competition keywords that relate to your niche, and get the keywords that are getting searches and use those. Work keyword planner with the Google search box and get keywords from the search drop down and research them to find what can place you above all. Or, you can have a different domain for each ad.
Trust me you don't want it be possible to run multiple ads, same keyword, same domain, different Adwords accounts. If it was an option, all the big companies would take the ad network over and make it really ruthless.. I hope that helps!?
Please know that I wasn't assuming that you're only intending to knock competition off the first page and hustle the system. I know the same domain with ads using the same keyword on multiple Adwords accounts is to be sure you're the person getting commissions as the reason. Plus, some people may do it to check on skill levels of ad networks to determine who is most up to par. Many reason. I just like the one about knocking the competition off the page.. :vteen: