Bring Competitive Keyword to the First Page of Google

This is an extremely competitive keyword and is currently on page 10 of Google. I want this keyword to be on the first page in 30-60 days. This is going to be a long-term ongoing project because the same person will maintain the keyword on the first page of Google. For more details, we can exchange communication and will let you know some of our restrictions. The release of payment is staggered so to make sure that the work is done as expected. The payment will be placed in an Escrow. The first release is 25% of the of the amount upon acceptance of the project. Another 25% after 30 days the keyword moved to the 5th page and the rest of the 50% when the keyword landed on the first page of Google. The cheaper, the better.