OK, here's a suggestion, and I don't know enough about the whole d/s thing to really know about this.
Is d/s for you a roleplay thing, or your life? If it's roleplay, then would it be possible to drop those roles when negotiating this relationship change? This puts everyone on a level playing field and allows each person to feel they have a voice. if it's your life, then I think part and parcel of it is going to be your master making whatever decisions he wants and, if you are lucky, you may be asked your opinion, but you don't have any right to complain if your master hasn't made what you regard as the "right" decision.
Sorry - speaking from the position of an outsider, here, so not sure how useful this is.
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