You make sure you have the words “Olympia lawyers” on your website so that Google will index it, and you create content that other people link to. Of course, you can’t just make a blank page with “olympia lawyers” copied and pasted throughout it, because Google is smart and knows better than to be tricked like that.
META information is great to add in, but is no longer the primary way of getting your site indexed. Google has made its business on providing accurate, high value search results, and META tags aren’t the primary way it does this (PageRank is one of them, and you can find lots of info by doing a Google search for that word).
Have a blog if you can, that will be indexed often, and if you write about relevant topics not only will your clients find you (such as if they do a Google search for “olympia divorce lawyer” and you have made a blog post about divorce proceedings), but you can link with other lawyer blogs and thus increase your PageRank.
But there is no real way of making sure it comes up as number one in the results. If there was, the entire integrity of Google’s search engine is discarded, as it would just turn into a bidding war.