Married couples can enter into contracts that define the nature of their property. Married couples may also agree to change the character of the community`s real or personal property separately or vice versa. For example, if you had a condo before your wedding and you rented the condo during your wedding, the rental income would be a common property. However, if you sold the condo during your wedding, the proceeds of the sale would be a separate property. Division agreements take place during a marriage and the spouses owe each other a fiduciary duty. Before they got married, they were strangers. After their marriage, let them treat each other fairly. Yes. A spouse who converts his or her separated property into collective ownership waives a property right that a court could not remove under normal circumstances. . .