M & A advice?

Hey does anyone here work in mergers and acquisitions? I am looking for some advice on how to enter the field, having completed my MBA and doing L1 in June I am thinking of a career change. Some background to my question: over the past four years I have worked in sustainability (both financial and non-financial), management consultation and compliance. At the moment I mostly do business plans, valuations and the legal side of establishing new businesses. All of which has been in South Africa but in August I am moving to London (have lived there before) and something new.