Can a Landlord Sue a Tenant In Small Claims Court?
Most Disputes Between a Landlord and Tenant Must Proceed In the Landlord Tenant Board. Proceedings Brought In An Improper Venue May Be Dismissed for Lack of Jurisdiction.
Most disputes between a landlord and tenant are required to proceed at the Landlord Tenant Board (the "LTB"); however, there are some dispute issues that must take place elsewhere. The LTB often holds exclusive jurisdiction, meaning that the LTB is the absolute proper venue without exception, for certain types of disputes; and yet, there are other types of disputes that the LTB absolutely must not hear. Understanding when a case goes to the LTB and when a case goes elsewhere is very important to ensuring that a case avoids dismissal for 'want of jurisdiction', which is legal speak for lack of authority by a court or tribunal to hear a specific legal issue.
For the majority of disputes arising out of the relations between a landlord and tenant involved in a residential tenancy, the Residential Tenancies Act, 2002, S.O. 2006, Chapter 17 (the "RTA") will apply. For matters where the RTA applies and the LTB is conferred with decision making authority, per the 'exclusive jurisdiction' provision stated with in s. 168 of the RTA, such decisions must be made by the LTB and jurisdiction of the Small Claims Court is ousted; Brydges v. Johnson, 2016 CanLII 4942; Finney v. Cepovski, 2015 CanLII 48918 at 17; Efrach v. Cherishome Living, 2015 ONSC 472 at 6; Mercier v. Hawco, 2014 CanLII 141 at 6 to 7; Fraser v. Beach, 2005 CanLII 14309 (ON CA) at 15. Regrettably, the RTA provisions, and thus LTB exclusive jurisdiction, can be confusing as many provisions are conditional and perhaps vague; and accordingly, subject to differences of interpretation.
Recently, the Divisional Court ruled in Kiselman v. Klerer, 2019 ONSC 6668 regarding the often confusing issue of whether the landlord should pursue a former tenant for rent arrears and damage to the rental unit at the Landlord Tenant Board rather than the Small Claims Court and it was said:
 The landlord brought a claim in Small Claims Court for rent arrears and damage to the property. The claim was brought after the tenant had vacated the property. The amount of the claim did not exceed the $25,000 cap, then in place under s. 207(1) of the Act. It is plain and obvious that s. 168(2) of the Act gives the Board exclusive jurisdiction to determine claims of this type between landlord and tenant. The parties had a landlord and tenant relationship, and in my view, nothing turns on the fact that the action was started after the tenant was no longer in possession. It is clear that disputes of this sort are the daily fare of the Landlord and Tenant Board. When assessing claims, the Board is in the best position to determine whether claims for rent arrears and allegations of damage to property against the tenant amount to “undue damage” or simply wear and tear as a result of the normal occupancy of a residential unit.
Multiplicity of Proceedings
Sometimes the jurisdiction conditions can cause a multiplicity of proceedings occuring in two places such as where tenancy relations break down prior to the 'move in date' whereas the tenant must apply to the LTB for return of a rent deposit as governed by s. 107(1) of the RTA; and yet, the landlord may be forbidden from applying to the LTB per the s. 87(1) condition that require the landlord's access to the LTB be available for certain matters only if the tenant is in possession of the rental unit. For example, this circumstance often occurs where a tenant tries to 'opt out' of a lease at the last moment, for whatever other reason, by failing to occupy the rental unit and then subsequently seeking return of a first and last rent deposit. Regardless of the reason the tenant seeks return of the rent deposit, the tenant must pursue the return of the rent deposit at the LTB per s. 107(1) which provides that the LTB may hear a case about why the rent deposit should be returned and this section coupled with the s. 168 exclusive jurisdiction provision imposes the absoluteness of the requirement that the rent deposit question be decided by the LTB. Contrarily, in the same situation, if the landlord wishes to claim loss of rent arising from the 11th hour 'opt out' by the tenant, the landlord must proceed to the Small Claims Court by virtue of inaccess to the LTB that arises from the s. 87(1) condition that the landlord may seek 'rent arrears' from the LTB only if the tenant remains in possession of the rental unit - and in this situation the tenant failed to take possession of the rental unit. It is interesting to note that the tenant may be with good reason to 'opt out' at the last moment, the tenant may even be in the right with a good enough reason to 'win'; however, the tenant must pursue return of the rent deposit via the LTB and the landlord must pursue the loss of rent at the Small Claims Court despite the multiplicity of proceedings problem that arises.
With the above said in regards to a 'multiplicity of proceedings', principles of natural justice may permit, and perhaps require, that one of the proceedings be 'stayed' until a decision is made in the other forum and then the decision in the matter that was stayed may need to follow the factual decisions in the matter decided upon first. This 'staying' of one of the two processes ensures that the risk of two opposing factual decisions are avoided whereas two opposing factual decisions would put the administration of justice into disrepute.
If a case involving a landlord and tenant is taken to the wrong venue, the case may be thrown out. Frustratingly, some legal issues must proceed and be heard at the LTB and other issues must be heard elsewhere, such as the Small Claims Court. If a case is started at the wrong venue, such as choosing the LTB or a case that must be heard in Small Claims Court, or vice versa, the case will be thrown out. If a case gets thrown out because the case was brought into the wrong venue, due to limitation periods that may be applicable, it may be too late to start again in the proper venue. Accordingly, bringing a case into the proper venue is best done right the first time.