Hard8s

My wife has a business which she purchased a domain name and set up a website for. Her only competition in the area recently purchased and set up a domain name almost exactly the same, (minus one letter) and directed it to their real website. Is their anything that she can do about it? She has a business name and business liscense which is the same as her website, based on her name (i.e. w_w.mabelsdishwashing.com their new one would be w_w.mabeldishwashing.com). They have no one working for them with my wife's name, which is not Mabel and she does not have a dishwashing business, although she does do the dishes now and then. Both business do basically the same things just differently.

We are in California, but I am sure this has been done before around the country. Can we send them a cease and desist letter, for using her basic business name? Should she get her name trademarked or copyrighted, and then deal with them? Any other options?

Thanks

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