Craigslist ad posting

I need you to place an ad on craigslist in all US and Canada cities. There may be software to do this but I can't find a good one. The bidder must show an example of an ad that he or she has placed in multiple us cities using a craigslist autoposter. Manual submission takes too long and I keep getting flagged by duplicate ad errors. The project is complete only after 90% the the ads remain on craigslist for three days without getting removed. I provide you with one or two ads in either Word or Html format. It's up to you to vary it using a craigslist autoposter software to avoid getting duplicate ad errors. Platform: Craigslist is a requirement. Other alternatives to craigslist if you can. Deliverables: 1) My ad placed in all US and Canada cities on craigslist. 2) It's the coders responsibility to vary the ad without changing the ads overall meaning. The reason you or the software must change the ad is to avoid getting duplicate posting errors on craigslist. 3) The project is complete only after 90% of the the ads remain on craigslist for three days without getting removed. At that point you get paid. 4) This will be a long term working opportunity after a mutual happy cooperation soon.