yelp fake reviews because i refuse to advertise with them yelp is constantley removing my possitive reviews and replacing them with fake negative reviews Internet

Ever since i claimed my business name on yelp they kept calling me to advertize with them and due to my business budgeting i decided not to advertize with them which was very expensive ,we sell about 2000 cars annualy and often some customers they leave us possitive and sometimes negative reviews which is understanble and despite all our effors sometimes we have a few unhappy customers like all other businesses.

What yelp is doing to us since we are not advertizing with them, any person places a possitive review gets taken down after couple hours and if there is any negative review sticks to the report, our internet team files a report with yelp to remove the fake review down and while they say they are reviewing the content and will get back to us which is about three or four days, the review is still on line and continues hurting our reputation and making us loose business, after few days they email and say they are keeping the review.

i am looking to find a great attorney to challenge yelp and i am asking bunch of business owners to split the costs and file a lawsuit against yelp.