Hi, I have a few questions, and they may seem pointed, but I am really just trying to be specific. Have you done a keyword analysis of your competitors? Have you done a keyword analysis of your own site? What is the niche in which you offer your service or product? How many pages do you want to rank? How many keywords are you wanting to rank? What CMS (content management service) are you using (Wordpress?) If the answer to any of those are 'nope' or 'umm, no idea' then thats fine - but the answers will determine your budget requirements from an SEO.