Texas has no jurisdiction over property in another state. You need to file the suit in the county and state where the property lies.Prenuptial and postnuptial agreements can be valuable tools for many couples. Call a Frisco marital agreement lawyer at . Pursuant to Chapter 4 of the Texas Family Code, parties must enter into a written agreement to change the nature of their property. This is a document through which the parties agree that particular property will be "separate property" and will not be divided. Seeking help with prenuptial or postnuptial agreements in Collin County? Our team is here to assist you in crafting a personalized marital agreement. Call - Guest and Gray Law Firm is dedicated to serving our clients with a range of legal services including Family Law and Divorce cases. After they're married, they are supposed to treat each other fairly.