I am considering applying for a US llm program, primarily focused on arbitration and dispute resolution, but I don't know a lot about the admission requirements:

I have a lot of practical experience from legal diverse legal work, also in the US (human rights organization) and written my dissertation on US / Scandinavian pre-trial law.

How important are academic results (grades) when an application is considered? and how does nationality for the sake of having a diverse alumni play in to the equation?

Thank you for all and any response.