The following websites are a must for everybody who plans to work and live here in Mauritius, as the Governement may change these rules/laws on a quarter monthly basis. For that, any given information about legal stuff in this forum may already be outdated.
Chamber of Commerce
Board of Investment (BOI)
I suggest to first read these sites to find answers for your legal questions and for whats still unanswered, concernig daily life etc., you just put the question here into the forum and we will try to answer.