Leach & Sullivan, Limited Liability Partnership

921 W. Main StreetP.O. Box 160Duncan, OK 73534- 0160

Updated: 02/09/2018


The Sullivan family has been practicing law in Stephens County and southwest Oklahoma since the 1920's. The firm of Leach & Sullivan was founded in 1954 by William O. Leach, Paul D. Sullivan, and Patrick D. Sullivan. The family tradition continued with Michael P. Sullivan joining the firm in 1972 and Kent P. Sullivan joining the firm in 1981. After William O. Leach passed away in 1990, longtime Duncan resident Jay B. Watkins became a partner, after joining the firm in 1987. Currently...


Office Info

Practice Areas

  • Criminal Law




Office Information


921 W. Main StreetP.O. Box 160Duncan, OK 73534- 0160


  • 580-255-5587


Offers Free Initial Consultation


Accepts Credit Cards


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Representative Clients

  • Citizens' Bank, Velma, Oklahoma
  • Sooner Trucking & Oil Field Services, Inc.
  • Interstate Petroleum Co.
  • Leffler Construction Co.
  • Jack Oil Co.
  • Stephens County Abstract Co.
  • Butkin Oil Co.
  • Raizen Oil Co.
  • Stephens County Economic Development Authority
  • CMI Strategic Marketing & Promotions, Inc.
  • Duncan Association of Realtors, Inc.
  • Legacy Bank, Duncan Oklahoma
  • Jackson Ranches, Inc.
  • Edward Trusts
  • First American Title Insurance Co.
  • Jackson Trusts
  • Lawyers Title Insurance Corp
  • Southwest Title & Trust Co.
  • Stewart Title & Escrow Services

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Firm Address


921 W. Main StreetP.O. Box 160Duncan, OK 73534- 0160