Therefore, while Sharyn Turchin was absolutely correct that a gift is presumed under Florida law when property is purchased by one spouse but placed in the names of both parties, this presumption does not apply when the antenuptial agreement specifically designates how the jointly held property is to be distributed. Thus, Sharyn was entitled to only one-half of the proceeds from the sale of the Coconut Isle property that was left in the parties’ joint account. With respect to the proceeds from the satisfaction of the Aqua Vista mortgage, the court, again relying upon the terms of the prenuptial agreement, ruled that she had no right to or interest in the proceeds.