Do I need a lawyer to apply for exclusive possession of the matrimonial home in Ontario?

You are not legally required to have a lawyer to apply for exclusive possession — you can represent yourself (self-represented litigants are permitted in Ontario courts). However, exclusive possession motions are legally complex and often involve contested evidence, legal arguments about the Family Law Act factors, and opposing counsel representing your spouse. Self-representation carries real risk.

The materials required for an exclusive possession motion include a proper notice of motion or application, a detailed supporting affidavit that addresses all the relevant factors under the Family Law Act, and often a financial statement. Procedural errors can delay your case or harm your outcome. The other side's lawyer will be prepared to challenge your evidence and arguments.

Legal Aid Ontario provides assistance for family law matters in some circumstances, and family law services organizations and duty counsel at the courthouse may offer limited assistance for self-represented litigants. If cost is the barrier to retaining a lawyer, it is worth checking whether you qualify for Legal Aid. Some lawyers also offer limited-scope retainers — helping you prepare your motion materials without full representation — which can be more affordable.