No. A properly drafted prenuptial agreement, along with accurate and comprehensive property and debt schedules, can ensure that all of your assets before marriage and everything acquired after marriage, remains your separate property. A partition agreement can do likewise, by dividing the entire community estate into two separate estates.

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Custom Texas Prenups/Marital Property AgreementsOnline Cohab Agreements Created by An AttorneyStandard Online Prenuptial Package
Standard Postnuptial Agreement