increase daily Adsense earning to US$25-30 per day

Hi there Freelancers i created a blog years ago about Gastronomy, it's called ImChef [login to view URL] ; it's a Spanish language blog. Wordpress based blog hosted in Hostgator. I'm looking for a Google Adsense expert that could make this happen, increase my daily earnings to US$25-30 per day. My blog is pretty popular reaching 4000 or more visits per day, so i know this task is possible. Here are the guidelines, if you accept them, please bid - Only serious freelancers to work with - Provide plan BEFORE the project is started - Must reach the US$25-30 per day of earnings - Only 100 % WHITE-HAT technics, no black, no grey. No want to risk the ban of my site or account - No spamming! - Freelancer must have a good communication with me, giving me daily reports of his/her work getting done - PLEASE NOTICE: Results must keep for at least a long period, the whole year or forever Payment: - I will only pay after seeing good results. I will pay you half the money after my first google adsense payment of at least US$700 and the second half after the second payment from google adsense. Following the rules of Freelancer.com, paying only when 100% satisfied. - Please notice that if my income is not at least a US$700 monthly you will not get paid. If you dont agree with my scheme of payment, please don't bid. - The payment is for the whole work, not just one month of work. I repeat, the results must keep at least for the whole 2015 year (10 months). if you can't do this, please don't bid. Thanks for your time and i'm hoping to make this happen.