okay so I found this, and while I am no lawyer, it appears to be relevant to your case. It states that:
Originally Posted by Chapter 185 of the General Laws of Massachusetts, Section 31
Section 31. A complaint may include two or more contiguous parcels of land, or two or more parcels which constitute one holding under one and the same title, within the same registry district. But two or more persons, who claim in the same parcels different interests which collectively make up the legal estate in fee simple in each parcel, shall not join in one complaint for more than one parcel unless their interests are alike in each and every parcel. The court may at any time order a complaint to be amended by striking out one or more of the parcels, or by a severance of the complaint.
I think what that is trying to say is that it has to be a unanimous decision, and not subject to a majority vote. The ending is where it gets me a little bit confused, saying that 'the court may at any time order a complaint to be amended by striking out one or more of the parcels or by a severance of the complaint'. Hopefully a lawyer can chime in and clarify if that means that it would strike out your "vote" or it would essentially leave the remainder 3/4 to be sold (which seems kind of odd
But I still advise you to contact a real estate lawyer regarding this.and here is where you can read more regarding property laws in Massachusetts.
p.s I really hope you're in Mass.