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About me

Patrick K. Costello is a partner in the law firm of Costello, Carlson & Butzon LLP.  Founded in 1896, the firm has offices in Jackson, Lakefield and Heron Lake, Minnesota.  A graduate of Hamline University and Creighton University School of Law, Mr. Costello is a native of Lakefield.  Agricultural law, real estate, probate and trust law, federal estate and gift tax, estate planning, charitable entities and commercial transactions are his main practice areas. Mr. Costello is a member of the American Bar Association, the Minnesota, Iowa and Nebraska State Bar Associations, the American Veterinary Medical Law Association and is a director of the American Agricultural Law Association.  He is a member of the Minnesota State Bar Association’s Sections on Agricultural Law, Real Property, Business Law, Probate and Trust Law, Animal Law, Elder Law, Immigration Law, General Practice and Outstate Practice. His law firm’s web address is:


Practice areas


  1. Estate Planning: 25%
    39 years
  2. Agriculture: 20%
    39 years
  3. Real Estate: 20%
    39 years
  4. Probate: 15%
    39 years
  5. Other: 20%
  6. More 



Fixed (always)

Payment types:

Cash, Check

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Contact info

Costello Carlson & Butzon, LLP

310 Main Street.
P.O. Box 929
Lakefield, MN, 56150-1200

Costello Carlson & Butzon, LLP

603 2nd Street
Jackson, MN, 56143-1645

Costello Carlson & Butzon, LLP

265 10th Street
Heron Lake, MN, 56137-4033



MNAuthorized to practice197809/19/2008
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Excellence in Agricultural Law AwardAmerican Agricultural Law Association2010
Work experience
TitleCompany nameDuration
PartnerCostello Carlson & Butzon, LLP1977 - Present
Association namePosition nameDuration
Minnesota Hispanic Bar AssociationMember2008 - Present
American Veterinary Medical Law AssociationMember2006 - Present
Iowa State Bar AssociationMember1977 - Present
Nebraska State Bar AssociationMember1977 - Present
American Agricultural Law AssociationBoard of Directors2007 - 2008
Outstate Practice Section of Minnesota State Bar AssociationChair2007 - 2008
American Bar AssociationVice-Chair of the Animal Law of Tort, Trial and Insurance2004 - 2008
Agricultural Law Section of Minnesota State Bar AssociationPast-Chair2002 - 2004
Outstate Practice Section of Minnesota State Bar AssociationPast-Chair1992 - 1994
Minnesota State Bar Association, 17th District Bar AssociationChair, Fee Arbitration1991 - 2008
Publication nameTitleDate
American Bar Association publicationImpact of Recapture in Deciding to Use I.R.C. Section 2032A1983
School nameMajorDegreeGraduated
Creighton University School of LawLawJD - Juris Doctor1977
Hamline UniversityN/ABA - Bachelor of Arts1974
Speaking engagements
Conference nameTitleDate
Probate & Trust Law Section ConferenceValuation of Agricultural Assets for Estate and Gift Taxation2009
Agricultural Law InstituteValuation of Agricultural Assets for Estate and Gift Taxation2009
29th Annual Agricultural Law SymposiumEthical and Competent Management of Law Offices2008
2008 Legal UpdateBusiness: Case Law and Statutory Update2008
Agricultural Law InstituteSurvey of the Distinctions Made in Minnesota Law for Agricultural Real Estate, with commentary and appendices2002
2001 American Agricultural Law Association ConferenceServing Agricultural Clients, Managing a Financially Sound Law Practice2001
Agricultural Law InstituteMarital Deductions, Disclaimers and Gifting to Avoid Taxation2000
Agricultural Law InstituteSmall Business Taxation and Estate Planning Update1999
Agricultural Law InstituteCreative Valuation1997
Agricultural Law InstituteEstate Planning for Farmers and Ranchers1995
1995 American Agricultural Law Association ConferenceCurrent Developments in Farm Estate Planning1995
1994 American Agricultural Law Association ConferenceStarting a Charitable Foundation Using the Community Foundation Option1994