Our Team
Paul D. Gresk “Abogado Pablo”
Paul Gresk is a founding partner of the firm with over forty years in the practice of immigration law. He is a former executive assistant to U.S. Senator Richard G. Lugar. As “Abogado Pablo” he hosts a daily radio call-in show on Radio Latina 107.1 fm, and 810 am in which he answers call-in U.S. immigration questions. He is a graduate of Indiana University’s School of Law (J.D. 1979) and of its Graduate School of Business (M.B.A. 1978). He is a former Indiana Chapter Chair of the American Immigration Lawyers’ Association and has been speaker at numerous local, state and national conferences.
Catherine A. Singleton
Catherine Singleton is a founding partner of the firm. Formerly a teacher of romance languages at the secondary and university level, she has studied at five foreign universities in Western Europe and Egypt. She has an exclusive concentration in the practice of U.S. immigration law, with over thirty-five years of experience, she has supervised the processing of tens of thousands of applications and petitions.
Attorneys
Spenser Rohler
Spenser is a 2015 Indiana University Maurer School of Law graduate who enjoys helping families navigate the immigration process. Spenser is involved in nearly all areas of the firm's practice areas and excels as a writer. Spenser specializes in strategizing effective responses to Requests for Evidence, Notices of Intent to Deny, and appeals of Denial Decisions. Maizie Esparza
Maizie is a 2022 graduate of the Indiana Robert H. McKinney School of Law in Indianapolis. She started as a law clerk for Gresk & Singleton in the summer of 2020 after her 1L year and has remained with the firm since. Maizie speaks Spanish and is largely involved in the humanitarian area of the firm with her specialties in working with immigrant survivors of domestic abuse and special immigrant juveniles. As someone who went through the immigration process in her own family, Maizie has a passion for assisting others in their journey to becoming a United States citizen.Randolph Leerkamp
Mr. Leerkamp has over thirty-five years of experience in providing civil litigation services. He represents the interests of those who have been injured by another or in collecting money for debts owed. He has years of experience in the court room, in the practice of civil law, and in his representation of clients who seek the collection of damages for harm done by others.