Pre-Nuptial Agreements (i.e. Ante-nuptial Agreements) are a part of a family lawyer's practice that requires great care, knowledge and experience. Any Pre-Nuptial Agreement can be contested years later in a divorce or probate case. The sums of money at stake, if a Pre-Nuptial Agreement is determined to be invalid or portions of the agreement unenforceable, can be vast. The risk of the agreement being determined invalid must be considered by the attorney and client alike, when the agreement is negotiated, drafted and executed.