As you know I'm quite new a SEO stuff and I learned almost everything from this forum. I feel stuck still ignored by Google with websites 2 year old. I know I make a tons of mistakes and I need a mentor to help me understand and do a better SEO job. So the question is how much this service would cost me? Thanks.
Wake up! I can't believe people still pay for those services. Read comment by Old Welsh on this link.
An seo expert will cost you anywhere between $1000 - $10000 depending on what you want to achieve and how much coffee the expert deems he would have to swallow. I think the best thing is to post the url first and see what the "experts" here suggest.
I posted an URL once for a review and the few comments I got were: 'don't like the banner' or 'I saw a typo'... that's why I'm looking at investing some cash to get mentoring. I do a lot of mentoring and it works the best. I know mentoring should be free but you don't attract bees with vinegar and no bees no honey (my Grand'ma motto).