What should i study to make my career path flourish?

I am a lawyer by profession with 4 yrs exp with a law firm. Now for past 2 yrs, I am working in a large Indian company handling (marketing & bit of legal) Estate Planning for HNIs...pretty good at my job but now I think that i wouldn't get a job in any other company considering I have mixed-up the legal with marketing. Therefore I am looking out for a further education to broaden my horizon. Should I do MBA, LLM, CS, CFP??? Pls help!!!