The current study examined several demographic and psychosocial predictors of mothers' legal custody preference early in the process. Simple logistic regressions between these predictors and custody preference were completed. Variables that had a significant or marginally significant simple relation with legal custody preference were included in a simultaneous regression predicting custody preference. Only mother's perceptions of her ex-husband's parenting competence uniquely predicted legal custody preference. Key Words: children, divorce, joint legal custody. Kathryn L. Wilcox, Sharlene A. Wolchik**, and Sanford L. Braver Cherlin (1992) estimates that over 40% of the children in this generation will live in a divorced, single parent family before they turn 16 years of age. Further, researchers have shown that can have a negative effect on all family members (e.g., Amato & Keith,1991a, 1991b) and have argued that a better understanding of the factors that affect postdivorce adjustment is needed to develop effective policy and interventions to prevent these negative effects (Felner & Farber, 1980; Felner, Terre, & Rowlison, 1988). This paper examines maternal legal custody preferences, an early indicator of postdivorce custody outcomes. Custody options have expanded in the last 20 years (see Emery, 1994 for a review of current custody options). Joint custody, as well as the more traditional sole mother and sole father custody, is an option in the custody statutes of 40 states and noted in case law in several of the remaining states (Emery, 1994). Further, some states have a preference for joint legal custody, which requires that joint legal custody is awarded unless sufficient evidence is presented to show that another form of custody will be more adaptive (Ferreiro, 1990). Despite the growing number of custody options, Fox and Kelly (1995) note that knowledge remains quite limited regarding the conditions that are associated with mothers and fathers receiving custody of children at divorce (p. 693). Viewing as a process, it is reasonable to expect that many experiences related to the will predate and influence the final custody outcome. One important influence is maternal pre-decree custody preference, which has been closely linked to custody outcome (Maccoby & Mnookin, 1992). Custody preference, rather than custody outcome, is the focus of this study for three reasons. First, because custody preferences are established early in the custody decision process, they are likely to more accurately reflect what parents want regarding their custody arrangement, rather than what they believe they can get. Further, because preferences are not legal mandates and are, therefore, more malleable than outcomes, determining predictors of maternal custody preferences may help mediators, counselors, and intervention developers assist parents to select a custody arrangement that is more consistent with the needs of their children and themselves. Finally, custody preferences may affect the degree of satisfaction individuals have with their mandated custody outcomes. When parents get what they prefer regarding their custody outcomes, they will more likely be satisfied with the outcome. Arditti (1992) suggests that satisfaction with one's custody status is possibly more important than the final outcome itself. For example, custody satisfaction and parents' perceptions of conflict throughout the are correlated; therefore, greater custody satisfaction could be related to the successful navigation of the changes families must undergo throughout the process. Several researchers have observed gender differences in satisfaction with legal custody status. For example, fathers are very satisfied with joint legal custody (Arditti, 1992; Pearson & Thoennes, 1990); however, mothers are most satisfied with sole custody outcomes (Pearson & Thoennes, 1990). …