⚠️ Legal Disclaimer: This guide is for general informational purposes only and does not constitute legal advice. Real estate law is complex and jurisdiction-specific. Always consult a qualified real estate lawyer before making legal decisions. Content draws on materials from Natalie Porcaro-Clermont, Real Estate Lawyer.
Table of Contents
- Structuring the Deal: Holding Title
- Corporate Ownership
- Buying & Selling Multi-Residential Properties
- Converting Single-Family to Multi-Residential
- Zoning & Legal Non-Conforming Status
- Work Orders & Outstanding Permits
- Tenant Rights & Landlord Obligations (RTA)
- Legal Due Diligence Checklist
- Frequently Asked Questions
Structuring the Deal: How You Hold Title
One of the first legal decisions when investing in a secondary suite property is how you take title — personally or through a corporation. Each has significant tax, liability, and financing implications.
Option A
Holding Title Personally
You (and potentially a co-owner) are registered on title personally.
✅ Simpler administration · Easier mortgage qualification · Principal residence exemption potential · Lower carrying costs
⚠️ Personal liability for tenants, injuries, debts · Rental income taxed at personal marginal rate · Limits portfolio growth (debt loads up personal credit)
Option B
Corporate Ownership
A corporation (holding company or operating company) takes title to the property.
✅ Liability shield · Small business tax rate on income (initially) · Easier to add partners/investors · Estate planning flexibility
⚠️ Higher mortgage rates (commercial lenders) · Personal guarantees typically still required · More complex accounting · No principal residence exemption
Option C
Joint Venture / Partnership
Two or more parties co-invest through a JV agreement or formal partnership.
✅ Combines capital and skills · Shared risk · Can leverage partners' mortgage capacity
⚠️ Requires detailed JV agreement · Dispute resolution critical · Exit provisions must be explicit · Shared liability
Key Considerations When Choosing: Taxes, financing, liability, and your long-term growth strategy should all factor into the decision. Discuss with both a CPA (tax implications) and a real estate lawyer (title and liability) before structuring each deal. What works for one investor may not work for another.
Corporate Ownership — Key Legal Concepts
Holding Company Structure
Many experienced Ontario real estate investors use a two-tier structure: an operating company that actively manages properties, and a holding company that holds the equity. Dividends flow from the operating co. to the holding co. tax-free (inter-corporate dividend exemption), providing a tax shield until funds are needed personally.
Administrative Considerations
- Annual corporate tax returns and minutes
- Separate bank accounts and bookkeeping
- Management fees (operating to holding co.) must be reasonable and documented
- Shareholders' agreement if multiple owners
Financing Caution with Corporations: Conventional residential mortgage lenders (banks, credit unions) typically will not lend to corporations on residential properties — or if they do, rates and terms are less favorable. Many corporate investors use commercial lenders, private lenders, or hold properties personally for financing purposes, then transfer to a corporation after (with significant legal and tax considerations on the transfer). Plan financing and corporate structure together.
Buying & Selling Multi-Residential Properties
Purchasing a property with an existing or planned secondary suite requires additional legal diligence beyond a typical residential transaction.
Agreement of Purchase and Sale (APS) Considerations
- Key Dates: Condition expiry, completion date — allow time for thorough due diligence on permits, tenants, and zoning
- Chattels and Fixtures: Specify appliances in each unit clearly in Schedule A
- Rental Items: Identify all rental/leased equipment (water heater, HVAC, etc.) — these are assumed by the buyer
- Physical Inspections: Home inspection + separate legal suite inspection as a condition
Tenanted Properties
- Request vacant possession or confirm tenant status
- Review all existing leases — tenants have strong rights under the Ontario RTA
- Obtain Tenant Acknowledgements (confirming lease details, rent, no disputes)
- Confirm rental licenses are current (some municipalities require them)
Survey Related Issues
- Structures/additions — confirm any added structure (addition, garage, deck) is within setbacks and properly permitted
- Encroachments — verify no structures encroach on neighbouring properties or easements
- Easements — confirm any registered easements (utility corridors, drainage) won't restrict planned renovations
Title Insurance: For investment properties with secondary suites, title insurance is strongly recommended. It protects against title defects, survey errors, unpermitted structures, and zoning non-compliance discovered after closing. Ask your lawyer about coverage specific to secondary suites.
Converting Single-Family to Multi-Residential
When adding a secondary suite to a single-family home, three critical legal steps are required:
- Surveys: Confirm the property's dimensions, setbacks, and existing structures are as represented — especially if adding a detached structure (garden suite)
- Existing Financing: Review your existing mortgage — some lenders have restrictions on converting to a multi-unit property or require notification. Failure to disclose can constitute mortgage fraud
- Consult an Expert: Engage a real estate lawyer before starting to understand your specific legal obligations, and a Building Code–registered designer for permit drawings
Mortgage Disclosure: If you have a residential mortgage and plan to add a secondary suite (converting to a multi-unit property), review your mortgage commitment carefully. Many residential mortgages require the property to remain "residential" (1 unit) or limit rentals. Converting without disclosure may put you in breach of your mortgage — lenders can accelerate the debt. Always notify your lender or switch to an appropriate product before converting.
Zoning & Legal Non-Conforming Status
Zoning is often the first — and most misunderstood — legal issue when evaluating a secondary suite property.
| Zoning Status | What It Means | Investor Implications |
|---|---|---|
| As-of-Right | Secondary suite is explicitly permitted in the current zoning | Simplest path — apply for building permit and build |
| Legal Non-Conforming | The existing use was legal when established but the current zoning no longer permits it; the use is "grandfathered" | Suite can continue to be used as-is, but major reconstruction may void the non-conforming status. Due diligence critical at purchase. |
| Zoning Variance Required | Secondary suite requires a Committee of Adjustment minor variance approval | Adds 3–6 months to project timeline; not guaranteed approval; adds cost. Now uncommon in Ontario given provincial legislation. |
| Non-Conforming (Unpermitted) | Suite was added without permits and doesn't conform to current zoning or OBC | High risk — work orders, lien potential, inability to rent legally, liability exposure. Must be legalized before financing or sale. |
Legal Non-Conforming — Buyer Beware: A "legal non-conforming" suite can be tricky. The use is protected — but only if continuously maintained. Abandonment of the use, or reconstruction beyond a certain threshold, can cause the protection to be lost. Always have a real estate lawyer review the specific history of any legal non-conforming property before purchase.
Work Orders & Outstanding Permits
Outstanding work orders or unpermitted structures are among the most common — and costly — surprises on multi-residential property purchases.
Types of Work Orders to Check:
- Fire orders — issued by the Fire Marshal or local fire inspector; require upgrades to smoke alarms, fire separation, or exits
- ESA orders — Electrical Safety Authority requires electrical upgrades
- Building permit orders — outstanding or expired permits requiring inspections or demolition of unpermitted work
- Property standards orders — issued for health, safety, or property maintenance violations
Work Orders Run With the Land: Outstanding work orders are attached to the property — not the seller. They become the buyer's problem at closing. Always search for outstanding work orders as a condition in the APS. Have your real estate lawyer conduct a work order search on both the building permit and fire departments before waiving conditions.
Outstanding Permits: An expired or outstanding building permit (where the work was started but final inspection was never obtained) is a significant liability. The new owner inherits the responsibility to complete the work to current code and pass final inspection — which may require costly upgrades.
Tenant Rights & Landlord Obligations — Ontario RTA
Ontario's Residential Tenancies Act (RTA) provides strong tenant protections. Understanding your obligations as a landlord is essential to managing a legal secondary suite.
Key Landlord Obligations
- Provide the unit in a good state of repair and fit for habitation
- Comply with health, safety, housing, and maintenance standards
- Provide 24 hours' written notice before entry (except emergencies)
- Use standard lease form (Ontario Standard Lease — mandatory since 2018)
- Limit rent increases to provincial guideline (unless exempt — new units post-2018)
- Apply to LTB (Landlord and Tenant Board) for eviction — self-help eviction is illegal
Key Tenant Protections
- Tenants cannot be evicted without proper LTB process (60–90+ day timelines)
- Rent control applies to units first occupied for residential purposes before Nov 15, 2018
- New units (post-2018 first occupancy) are exempt from rent control
- Personal use eviction requires N12 notice — significant timelines and compensation
- Good faith requirement: must actually use the unit for claimed purpose if evicting
Tip: Secondary suites first occupied after November 15, 2018 (i.e., brand new legal suites) are not subject to rent control — landlords can set rent at market rate between tenancies.
Legal Due Diligence Checklist — Secondary Suite Properties
- Confirm current zoning permits a secondary suite (Planning/Zoning department)
- Search for outstanding work orders (Fire, Building, ESA, Property Standards)
- Verify building permit was issued and final inspection completed for the suite
- Obtain copies of all permits and inspection reports from seller
- Review all existing leases — compare to Land Titles / property details
- Obtain Tenant Acknowledgement letters (confirm rent, lease end dates, no disputes)
- Confirm rental license status if required by municipality
- Order a survey or review existing survey — confirm all structures within setbacks
- Search for registered easements or rights-of-way on title
- Confirm no registered liens or charges related to outstanding renovation work
- Review mortgage commitment for restrictions on multi-unit properties
- Confirm property insurance coverage extends to secondary suite and rental use
- Review any homeowners' association or condominium restrictions (if applicable)
- Search for heritage designation that may affect renovation options
- Confirm HST status — is the property new or substantially renovated? (triggers HST)
- Engage a real estate lawyer experienced with investment properties for title review
Frequently Asked Questions
What is a "legal non-conforming" secondary suite?
A legal non-conforming secondary suite is one that was legally established under the zoning and building regulations in place at the time it was created — but which would not be permitted under current zoning. The use is "grandfathered" and can continue, but it may not be rebuilt or significantly expanded. If the property is substantially renovated, the non-conforming protection may be lost, requiring the suite to comply with current regulations. Always have a real estate lawyer and planner confirm the specific protection in your municipality.
Can a landlord evict a tenant to use the secondary suite personally?
Yes — under the Ontario Residential Tenancies Act, a landlord can serve an N12 (Notice to End Tenancy for Landlord's Own Use) to move themselves, their spouse, child, parent, or the child/parent of a spouse into the unit. The tenant is entitled to one month's rent in compensation (or a comparable unit). The notice period is typically 60 days. However, the landlord must genuinely intend to use the unit for the specified purpose — bad faith evictions result in substantial fines. This is a complex area; consult a real estate lawyer before proceeding.
Is rent control different for secondary suites in new construction?
Yes. Units in buildings, additions, or new suites that were first occupied for residential purposes after November 15, 2018 are exempt from Ontario's rent increase guideline. This means landlords can raise the rent by any amount between tenancies — though the annual increase during a tenancy still requires proper notice (Form N1) and can only be increased once per 12 months. For older basement apartments first occupied before November 15, 2018, the rent control guideline applies.
What are work orders and how do they affect a property purchase?
Work orders are municipal or provincial orders requiring specific work to be completed on a property — typically for fire safety, electrical safety, building code compliance, or property maintenance. They are registered against the property and transfer to the new owner at closing. Before purchasing any multi-unit or secondary suite property, your lawyer should conduct work order searches through the local municipality (Building, Fire), the ESA, and property standards offices. Outstanding work orders can be very costly to remediate and may require disclosure to lenders.
Do I need a rental license to rent out a secondary suite in London, Ontario?
The City of London has a rental licensing program for certain property types. Requirements vary based on the type of rental property, number of units, and occupancy type. As of 2025, check directly with the City of London's Municipal Compliance department for current rental licensing requirements applicable to your property. Operating without a required rental license can result in fines and enforcement action.