Experienced Attorney

Ms. Callahan is a 30-year, AV rated attorney who has practiced in Orange County, California her entire career and handled complex business litigation matters in state and federal courts throughout California and many out-of-state jurisdictions. This experience covered a broad spectrum of industries and subject matters – including business/commercial contracts, commercial lending, commercial leasing, equipment leasing, intellectual property, purchase and sale of businesses, partnership dissolution, financial elder abuse, employer / employee relations, franchisor-franchisee relations, real property development, and wills and trusts.

Alternative Dispute Resolution

For the past 20 years, Ms. Callahan has been engaged in alternative dispute resolution work as a mediator, arbitrator, settlement advisor and arbitration consultant. She has been in the ADR trenches for over 15 years and knows how to put theory into practice. In this regard, Ms. Callahan is known for her advance preparation, creative thinking, high energy, and collaborative style, as well as her ability to bring difficult disputes to a close in an efficient, economic, thoughtful and fair manner.

Recognized Expert

Ms. Callahan is a recognized expert in the field of dispute resolution. She teaches Arbitration and Mediation as an adjunct professor at Pepperdine School of Law / Straus Institute, and is also on the Faculty of the American Arbitration Association University where she presents skills training courses on various arbitration and mediation topics. Additionally, Ms. Callahan speaks, writes and contributes to various advanced topic book publications, workshops and projects aimed at advancing awareness and understanding of the many alternatives to litigation available to disputing parties.


Ms. Callahan received her JD from the Cal Berkeley (Boalt Hall) and her undergraduate degree from USC. In 2007, she earned an LLM in Dispute Resolution from Pepperdine University School of Law / Straus Institute.

She is a Past Chair of the ADR Section of the Orange County Bar Association and currently sits as an elected member of the Board of Directors of the Orange County Bar Association.

Case Summaries – All Subject Matters

  download Case Summaries 

Ms. Callahan is available to serve on a statewide basis. Engagements can be booked directly through her office.


Banking & Finance Disputes

  • Accountings
  • Bank Fraud
  • Breach of Loan Agreement
  • Breach of Guaranty
  • Judicial and Non-Judicial Enforcement of Liens
  • Objection to Debt Discharge
  • Title / Lien Priority Disputes
  • Tracing / Constructive Trust
  • Valuation
  • Wrongful Foreclosure
  • Banking
  • Equipment Leasing
  • Finance
  • Financial Elder Abuse
  • Foreclosure
  • Guaranty
  • Loan
  • Tax Consequences

download Case Summaries June 2016

Bankruptcy / Chapter 11 Insolvency

  • Assumption & assignment of contract rights
  • Claim disputes
  • Fraudulent transfer
  • Nondischargeability
  • Plan design & confirmation
  • Preferences
  • Property ownership & co-ownership
  • Relief from stay

download Case Summaries June 2016

Business / Commercial Disputes

  • Accounting
  • Breach of contract
  • Breach of fiduciary duty
  • Conversion / Misappropriation
  • Fraud
  • Fraudulent transfer
  • Internal disputes between owners
  • Liquidation & unwinding
  • Partnership dissolution
  • Unfair competition

download Case Summaries June 2016

Real Estate Disputes

  • Landlord / Tenant (Commercial)
  • Lease interpretation / performance issues
  • Partition
  • Scope of lien / lien priority
  • Specific performance

download Case Summaries June 2016

Employment Disputes

  • Breach of contract
  • Discrimination
  • Wage & hour
  • Wrongful termination

download Case Summaries June 2016

Probate / Wills & Trusts

  • Accounting disputes
  • Beneficiary disputes
  • Breach of fiduciary duty claims
  • Challenges to validity / enforceability
  • Financial elder abuse
  • Interpretation disputes
  • Trust administration disputes

download Case Summaries June 2016