If you are purchasing land with your fiance, retitle the deed after the marriage.
This is a fairly inexpensive way to avoid a major hassle in probate. Be sure and do this with a licensed attorney however, or you will be compounding the hassle.
So many times I have heard people say, "you don't need a lawyer for this, just fill out a form and file it." I am here to tell you, there is no surer way to make xtra money for the attorneys than prepare your own legal documents. It is being penny wise and dollar foolish.