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Teresa O. Sirianni

Union Trust Building, Suite 700
501 Grant Street
Pittsburgh, PA 15219
(412) 803-1177
(412) 803-1188 - Fax

Teresa is a strong advocate for her employment law, civil rights and municipal liability clients. In her role as an experienced litigator, Teresa represents school districts, school leaders, municipalities, police departments and various non-profit and corporate entities, in claims made and suits brought against them.  She appears regularly in both the state and federal courts, representing clients in suits brought against them involving Section 1983 claims, Title VII actions, ADEA, ADA, FMLA and PHRA matters.

When called on to represent and defend school leaders and school districts, Teresa’s experience and understanding in education law serve her clients well. She represents all types of education clients with a focus on Special Education Law, Due Process Student Rights, Bullying and Anti-Bullying Policies and Educator Due Process.

In addition to her experience as a litigator, Teresa represents employers and other professionals in various administrative matters; before the Pennsylvania Labor Relations Board, the National Labor Relations Board, the Pennsylvania Human Relations Commission, the Equal Employment Opportunity Commission, and multiple other administrative units including the Pennsylvania Department of Education, the Office for Dispute Resolution, the Office for Civil Rights and the State Ethics Commission. Teresa also consults with employers, school leaders and various types of public entities on matters including auditing, updating and revising personnel manuals and educational policies.

Significant Representative Matters

  • Defense verdict for municipal employer against a former employee’s claims that he was terminated in violation of the FMLA.

  • Obtained summary judgment in federal court on behalf of a school district employer alleged to have violated the ADA when it terminated plaintiff’s employment in violation of various school policies.

  • Obtained an early dismissal of an employee’s breach of contract claim wherein the employee alleged that the employer terminated his employment in violation of a union contract despite the employee’s status as a probationary employee.

  • Successfully defended a police chief and municipal police department against plaintiff’s claims of violations of his procedural and substantive due process rights under the Fourteenth Amendment and claims of defamation and intentional infliction of emotional distress.  Obtained summary judgment on all of plaintiff’s claims following aggressive discovery.

  • Obtained a complete dismissal of plaintiff’s multiple civil rights claims on a motion to dismiss brought pursuant to the Fourth and Fourteenth Amendments and various other federal statutes against multiple police officers wherein Plaintiff claimed that the officers violated the knock and announce rule by not announcing their presence prior to entering plaintiff’s apartment and arresting him.

  • Summary judgment secured for a non-profit corporation against former employee’s claim of constructive discharge and allegations of disparate treatment, hostile work environment and retaliation.

Classes/Seminars Taught

  • Effective Practices for General Educators in Inclusive Classrooms, November 18, 2018

  • The Role of the General Educator in the Special Education Process, January 15, 2018

  • How A Student Can Make A Successful Return to School – Liabilities and Responsibilities – Concussion Presentation, February 28, 2014

  • Employment Liability in the Cyber Age, Marshall Dennehey / AIG Employment Seminar, Pittsburgh, PA, May 2, 2013

  • Employment in Crisis: Workplace Security & Lessons from the Sandusky Case, Marshall Dennehey, Erie, PA, October 11, 2012

  • Speaker on various topics involving employment claims and federal practice.

Published Works


  • Duquesne University School of Law, Pittsburgh, Pennsylvania (J.D., 2002)

  • Pennsylvania State University (B.S., 1995)

Defense Digest Article December 1, 2014
By Rebecca G. Yanos, Esq. & Teresa O. Sirianni, Esq.* Key Points: The EEOC’s 2014 Guidance expands the scope of the Pregnancy Discrimination Act (PDA) in many ways, including but not limited to, conforming to the ADAAA’s..., Defense Digest, Vol. 20, No. 4, December 2014 Defense Digest is prepared by Marshall Dennehey Warner Coleman & Goggin to provide information on recent legal developments of interest to our readers. This publication is not intended to provide...
December 14, 2012
Philadelphia, PA – Marshall Dennehey Warner Coleman & Goggin is pleased to announce that the following 13 attorneys were elected shareholders at the Annual Shareholders’ Meeting on December 11, 2012: Christopher Boyle, Esq.; James Lare, Esq.; Thomas Marcoz, Esq.; Brian McNulty, Esq.; Raymond...
Seminar Oct 11, 2012
Join our distinguished panel for lunch and a discussion on issues relating to employment practices.
Seminar May 2, 2013
Join us for this unique presentation on cutting edge employment issues. The seminar will feature a mock trial "Social Media on Trial - How Social Media Affects Employers" and a panel discussion "Cyber Data Breach - The Latest...


  • Duquesne University School of Law (J.D., 2002)
  • Pennsylvania State University (B.S., 1995)

Bar Admissions

  • Pennsylvania, 2003
  • U.S. District Court Western District of Pennsylvania, 2003

Associations & Memberships

  • Allegheny County Bar Association, 2002 - Present

Honors & Awards

  • Pennsylvania Super Lawyer Rising Star, 2013

Year Joined Organization: 2000

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