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About me

Shirley M. Diefenbach began her law practice in New York where she was an associate of a nationally recognized Elder Law and Estate Planning law firm. Through her many years of practice, she has had the opportunity to help hundreds of families with their estate planning and trust and estate administration needs.

Shirley earned her law degree from the Benjamin N. Cardozo School of Law in New York City and her undergraduate degree from the University of Maryland.  While in law School, Shirley was the Internet Editor of the Arts & Entertainment Law Journal and a member of the Tax Clinic.  In that capacity, she represented low-income taxpayers in audits, administrative appeals, offers in compromise and other tax collection matters.

Shirley is admitted to practice law in New York and North Carolina.

On a personal note, Shirley has been married to her husband, Scott since 1999, and has a son, Nathan, born in 2008.  She enjoys cooking, traveling and spending time with her friends and family.


Languages spoken: English, Hebrew

Photos and videos

997790 1461164752

Practice areas


  1. Estate Planning: 25%
    12 years, 100 cases
  2. Elder Law: 25%
    12 years
  3. Probate: 25%
    12 years, 500 cases
  4. Trusts: 25%



Hourly ($350/hour), Fixed (sometimes)

Payment types:

Check, Credit card

Attorney endorsements

11 total 

Are you an attorney? Endorse this lawyer

  • No photo

    I endorse this lawyer. Shirley is an exceptional Estates Administration attorney. She is creative, efficient, resourceful, and always caring in her representation of clients and their surviving family members. Above all, Shirley is professional and unreproachably ethical in all she does.


    Thomas Sparks Business Attorney
    Relationship: Co-worker

  • Charles Eugene Davis III

    Shirley is an excellent attorney.


    Charles Davis Trusts Attorney
    Relationship: Co-worker

Contact info

Walker Lambe Rhudy Costley & Gill, PLLC

240 Leigh Farm Rd., Suite 100
Durham, NC, 27707


NYDue to reregister within 30 days of birthday 200403/07/2016
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
AdvocateTax clinic2003
Sigma Delta Tau SororityOutstanding Senior1998
Work experience
TitleCompany nameDuration
PartnerWalker Lambe Rhudy Costley & Gill, LLC2014 - Present
AssociateWalker Lambe Rhudy Costley & Gill, PLLC2011 - 2014
AttorneyVincent J. Russo & Associates, PC2003 - 2011
Heyman Fellow InternNEC2002 - 2003
Legal InternSupreme Court of New York - Justice James M. Catterson2002 - 2002
ParalegalSolomon Zauderer Ellenhorn Frischer & Sharp1999 - 2000
ParalegalTorys, LLP1998 - 1999
Association namePosition nameDuration
Durham-Orange Estate Planning CouncilMember2013 - Present
North Carolina Bar AssociationMemberN/A
Durham County Bar AssociationMemberN/A
Wake County Bar AssociationMemberN/A
Legal cases
Case nameOutcome
Estate PlanningClient was very happy
See all legal cases 
Publication nameTitleDate
News & ObserverProviding for your Pets After Your're Gone2015
Walker Lambe NewsletterWhat do do when a loved one passes away2013
School nameMajorDegreeGraduated
University of Maryland, College ParkFamily StudiesBS - Bachelor of Science1998
Yeshiva University, Benjamin N. Cardozo School of LawLawJD - Juris DoctorN/A
Speaking engagements
Conference nameTitleDate
Wake County Public Schools Adult EducationEstate Planning2016
Pet TrustsPet Trusts2015
Basics of estate planningEstate planning2015
MonthlyEstate Planning2012