Dennis Ovsyannikov

Dennis Ovsyannikov

Dennis Ovsyannikov is an Associate at Zeilikman Law.

Dennis completed his training as a lawyer at a boutique civil and criminal litigation firm in the City of Toronto. He has also worked as an associate lawyer at a mid-size civil litigation firm in the City of Mississauga.


Dennis obtained a B.A. (Honours) in History from York University (graduating with the highest honour) and a J.D. from the University of Ottawa, Faculty of Law.

Memberships & Affiliations

Dennis is a member of the Law Society of Ontario in good standing.

Areas of Practice

Dennis practices exclusively in the areas of employment law, labour law and professional discipline matters. He advocates on behalf of employers, employees and unions in a variety of work-related disputes such as wrongful dismissals, constructive dismissals, reprisals, potential violations of human rights, injunctions, disputes surrounding restrictive covenants, allegations of workplace bullying / harassment / toxic work environment, workplace investigations, duty of fair representation applications, workplace unionizations (including preparation of union constitutions and by-laws), workplace de-unionizations, unfair labour practice applications, union grievances, union arbitrations, and inter-union disputes. 

Dennis has a particular interest in representing clients who face allegations of professional misconduct before self-governing professional regulatory bodies. Dennis successfully represented professionals in complex disciplinary proceedings before a variety of professional regulatory bodies including:

  • College of Nurses of Ontario (CNO); 
  • College of Massage Therapists of Ontario (CMTO); 
  • College of Medical Laboratory Technologists of Ontario (CMLTO); 
  • Professional Engineers Ontario (PEO);
  • College of Professional Accountants of Ontario (CPA Ontario); and 
  • Real Estate Council of Ontario (RECO).

Dennis regularly advocates on behalf of clients during motions, hearings, settlement conferences, pre-trials and other court and tribunal matters before the Ontario Court of Justice, the Superior Court of Justice, the Small Claims Court, the Human Rights Tribunal of Ontario, the Social Benefits Tribunal of Ontario and the Ontario Labour Relations Board.

Dennis is a client-service and results-oriented professional. He excels in formal court and tribunal settings as well as during mediations and negotiations.

Publications and Features

Terminated employees should seek legal advice promptly. Originally published in Advocate Daily

Strike the right chord when starting a union. Originally published in Advocate Daily

Protect your reputation when facing misconduct charges. Originally published in Advocate Daily

Ovsyannikov practices the art of listening in client service. Originally published in Advocate Daily

Just-cause terminations can backfire without proper evidence. Originally published in Advocate Daily

Notable Cases

Burlington Cumberland Square Inc. v Luck, CV-14-514563. Endorsement of Master Muir dated December 10, 2015.  The Plaintiff initiated an action against the Defendant but the Defendant failed to serve a statement of defence. The Plaintiff proceeded to note the Defendant in default and obtained a default judgment in favour of the Plaintiff, thereafter the Defendant retained the services of Zeilikman Law. P.C., Dennis prepared the necessary court materials and brought a motion on behalf of the Defendant to set aside the noting in default and the default judgment. Dennis succeeded in convincing the Superior Court of Justice to set aside the noting in default and the default judgment, no costs were awarded against the Defendant despite the Defendant’s initial failure to prepare a statement of defence.

Privatized Transit Union v Miller Transit Limited OLRB Case No: 2092-14-R. Successfully represented a grassroots union in its certification process before the Ontario Labour Relations Board and the removal of a large incumbent union.College of Nurses of Ontario v. T.T., 2019. Successfully represented a nurse who was under investigation by the College of Nurses of Ontario (“CNO”) for alleged professional misconduct.  The nurse was accused by her employer of altering important employment information. After Dennis prepared a response to the serious allegations on behalf of the nurse a Panel of the Inquiries, Reports and Complaints Committee of the CNO determined that the complaint should not proceed to a disciplinary hearing and closed the matter.

College of Massage Therapists of Ontario v. A.D., 2019. Successfully represented a registered massage therapist who was under investigation by the College of Massage Therapists of Ontario (“CMTO”). The massage therapist was accused by the massage therapist’s patient of performing an adjustment (which is outside the scope of practice of a massage therapist). The massage therapist had a history of prior professional misconduct. After Dennis prepared a response to the serious allegations on behalf of the massage therapist a Panel of the Inquiries, Reports and Complaints Committee of the CMTO determined that the complaint should not proceed to a disciplinary hearing and closed the matter.

Style Construction v 1875790 Ontario Ltd., 2020 ONSC 538. The Plaintiff brought a motion for summary judgment against the Defendants. Dennis prepared responding motion materials on behalf of the Defendants, upon review of the responding motion materials the Plaintiff decided to abandon its motion for summary judgment. Dennis successfully argued before the Superior Court of Justice that the Plaintiff must pay the Defendants legal costs based on the Plaintiff’s decision to abandon its motion for summary judgment. The presiding Judge awarded legal costs of the motion to the Defendants.

F.F. v Barapp Law Firm Professional Corporation, 2018. The Plaintiff alleged that she was wrongfully dismissed by her former employer and initiated a court action. The Defendant employer failed to comply with court orders issued in the course of the court proceeding, Dennis brought a motion on behalf of the Plaintiff to find the Defendant in contempt of court. The Defendant complied with court orders and the presiding Judge awarded legal costs of the motion to the Plaintiff.

United Brotherhood of Carpenters and Joiners of America, Local 397, Applicant v Execway Construction Limited, Responding Party, Construction Grievance, 2014, OLRB Case No: 2091-14-G. Based on a referral of a grievance to the Ontario Labour Relations Board (“OLRB”) for a determination the Board issued a default decision in favour of the Applicant. Dennis successfully represented the Respondent by filing a request to the OLRB for a reconsideration of its default decision. The OLRB granted the Respondent’s request for reconsideration and revoked its default decision.


Legal Receptionist

Zeilikman Law is an employment law firm located in Vaughan, Ontario. We are looking to hire a legal receptionist to join our firm. Preference will be given to candidates who have experience working as a receptionist at another law firm.

Location: Vaughan, Ontario.

Start Date: Immediately.

Hours: Monday to Friday, 9 am to 5 pm. Full time. In-person only. This is not a remote work position.

Wages: 35,000 to 40,000 per year.

Duties and Responsibilities:

  • Manage our firm’s multi-line telephone system to receive incoming calls.  Screen incoming telephone call inquiries to determine the nature of the telephone call and provide standard information related to our legal services.  Take and deliver messages and route incoming telephone calls to the appropriate staff person.
  • Answer general inquiries coming from the firm’s social media and website email.
  • Welcome in-person visitors upon arrival.  Direct visitors to the appropriate staff person and / or office or boardroom.
  • Organize in-person visitor schedule to prevent overlap and multiple bookings.
  • Receive, sort, and distribute daily mail and deliveries.
  • Arrange for couriers.
  • Keep front reception, kitchenette area and boardroom tidy.
  • Perform various clerical duties such as filing, photocopying, and faxing on an as-needed basis.
  • Process client or other payments.
  • May be asked to run minor errands outside of office such as attending post office to arrange a courier or pick up mail.
  • May be asked to assist other law clerks or lawyers of the firm as required and as appropriate.
  • Any other basic administrative duties or tasks as deemed appropriate.

Required Skills:

  • Basic knowledge of general office procedures including filing, faxing, and printing and copying.
  • Basic word processing computer skills.
  • Proficient in receptionist and telephone practices, etiquette, and decorum.
  • Professional attitude and appearance.
  • Excellent organizational skills.
  • Positive customer service attitude is a must.
  • Must be able to maintain confidential and sensitive information.

Education and Experience:

  • Highschool diploma or equivalent.
  • 1 – 2 years’ experience in an office setting with an emphasis in accounting, reception or clerical work is required.   We would prefer experience in a law firm environment.

Applications for this position should be sent via email to jennifer@zeilikmanlaw.com. All applications should include a cover letter, resume and at least two references. Only successful candidates will be contacted.