Legal Question in Real Estate Law in Iowa

Unfortunately "asap" is not going to happen unless the four of you come to an agreement. If you cannot resolve this, then you will have to file a partition action. The idea of partition is to divide the property between the owners, but what often happens is that the court orders the property sold, with the net proceeds divided between the owners. Either way, this will increase your expenses and probably decrease the amount you receive. Perhaps the holdout should buy the rest of your interests in the property.