need white hat or gray hat seo proffesional

I am looking for a Seo expert to boost my website to at least first page on search engines (google, yandex, bing...). I will give you one high competitive keyword, if your service is successful, we can work with more keywords or project. I expect 100 per cent guarantee.
I'm looking for a professional seo. I have a website. for a bold seo keywords homes for sale in google.com and google.co.id and other search engines in the first page. Please send offers with cheap price but professional and qualified
and tell me how much time? and the techniques and skills of what is being done for my project

example : www.rumahdi.com keyword (rumah dijual, rumah dijual di)
www.jasadesignpro.com keyword ( jasa pembuatan website)