This study aimed to analyze the effect on the performance of competence advocate partially advocate, advocate organizational commitment to advocate partial performance and competence of lawyers and advocates simultaneous organizational commitment. The population of this research is Law Firm that exist in all Jabodetabek area. While the sample is 25 percent of the existing Law Firm, then obtained 123 Law Firms. In general, there are 2 divisions of Legal Firm namely division of litigation and non litigation division. Thus obtained the number of units observed are as follows: 2 x 123 = 246 units. Method of quantitative analysis using path analysis, followed by analysis of determination (R Square), partial hypothesis testing (t test) and simultaneous (test F) with alpha 5 percent (0.05). Prior to further analysis, data quality and classical assumption test were conducted. Analytical tool using SPSS version 23.0 for windows. The results showed that the effect on the performance competence advocate partially advocate, advocate organizational commitment affect the performance partially advocates, and advocates competence and organizational influence on the performance kmitmen simultaneously advocate at law firm Law Firm in Greater Jakarta.