Buying a Dental Clinic in Ontario: Asset vs Share Purchase

An asset purchase can let an Ontario dental buyer select the property and obligations being acquired. A share purchase keeps the existing corporation in place, with its assets, contracts and historical exposure. Neither structure is automatically better: the useful comparison is between two workable transactions with ownership eligibility, patient care and operating continuity addressed.

Start by asking who will practise dentistry, who will own the professional corporation, and which entity will hold the lease, equipment and business obligations. Only then compare price, financing and the seller's preferred structure. A non-dentist investor cannot simply substitute an ordinary acquisition company for an eligible dentist buyer.

This guide focuses on that decision. Use the general dental practice purchase checklist for the wider investigation, and the asset versus share sale comparison tool to organise the initial alternatives. This is general information; obtain legal, accounting and clinical advice for the particular transaction.

For the broader purchase process and other sectors, visit the business acquisition hub and industry guide directory.

A dentistry professional corporation is subject to professional ownership rules. RCDSO's shareholder declaration requires voting shares to be owned legally and beneficially, directly or indirectly, by College members. Permitted non-voting ownership includes College members, specified family members of a voting dentist shareholder, and certain trusts for minor children. An unrelated investor does not qualify simply because the proposed shares are non-voting.

RCDSO also states that holding companies may not own shares in a dentistry professional corporation. A corporation needs the College's certificate of authorization before dental service fees may run through it, and shareholder changes must be reported. These requirements make the proposed ownership chart a first-stage diligence document. See RCDSO's health profession corporation guidance.

If a non-dentist intends to invest in premises, equipment or management services, have counsel analyse that arrangement separately. Identify the eligible clinical entity, preserve professional decision-making, and establish lawful access to information. Ownership of an administrative business is not permission to practise dentistry. Do not sign a structure-dependent commitment until the ownership and operating arrangements have been checked.

In an asset transaction, the agreement identifies what moves from the seller to the buyer. For a dental clinic, that could include owned chairs, imaging equipment, instruments, usable supplies, telephone numbers, website rights and goodwill. List excluded assets just as carefully: seller cash, personal investments, particular receivables or equipment belonging to a third party may sit outside the deal.

Separate each asset's legal owner from its location. A scanner in the operatory may be leased; a laboratory account may belong to the dentist personally; the office domain may be registered through an outside marketing agency. The buyer needs enforceable transfers or replacement arrangements, not merely possession on closing morning.

The attraction is selection. The buyer can negotiate which contractual obligations it assumes and price known obligations explicitly. The cost is the work of moving the business into the buyer's operating structure. Assignments, new accounts and consents may be necessary. An asset deal also does not erase liabilities imposed by law or remove the need for lawful patient-record arrangements. Put unresolved transfers into the closing conditions rather than leaving them as informal promises.

A share buyer acquires ownership of the existing corporation. Assets and obligations belonging to that corporation generally remain there; the buyer does not select individual corporate liabilities merely by excluding them from the purchase-price discussion. Historical payroll errors, disputed accounts, tax exposures and contractual breaches can therefore affect the value of the shares.

Request the minute book, share register, shareholder agreements and evidence of any past reorganisations. Confirm that the seller owns the shares being sold and that the corporation actually owns the advertised business. A separate property company, personally held equipment or a dentist's own receivables will not become corporate property because the buyer purchases the clinic corporation's shares.

Continuity can be useful where replacing contracts would be difficult, but read change-of-control clauses. The same corporation may remain the tenant while its lease still requires landlord consent to a share sale. Corporate continuity also does not substitute for checking professional authorization and individual permissions. Treat a share transaction as a deeper examination of the company's history, supported by negotiated warranties, disclosure and practical recovery rights.

Patient information is not an unrestricted customer database that travels with a goodwill clause. Identify the health information custodian before closing and determine whether custody or control will change under the actual transaction. The answer depends on the operating arrangements, not simply the asset or share label.

The IPC explains that a custodian generally remains responsible until complete custody and control pass to someone legally authorized to hold the records. Its guidance also addresses successor notification and secure transfer. See the IPC's PHIPA guidance on changes in practice.

During diligence, use aggregate or de-identified reporting where sufficient. RCDSO says a confidentiality agreement must precede disclosure to a potential purchaser for evaluating the practice. That agreement is a safeguard; confirm the lawful basis and minimum information needed before disclosing identifiable patient files. Its practice ownership guidance also requires written patient notification and protects patient choice and record access.

Agree who handles requests, historical backups and any lawful seller access after closing. Test the software export and access controls. A completed share transfer or equipment delivery is not evidence that these tasks have been completed.

For comparisons with other professional-practice acquisitions, see buying an optometry practice and buying a veterinary clinic. Each guide sets out the ownership, records and operating questions for its own profession.

Ask the accountant to compare the proposed structures using the actual corporation, financing and seller circumstances. Avoid negotiating from a general claim that one structure always saves tax. In an asset transaction, the allocation among equipment, supplies and goodwill needs legal and accounting agreement. In a share transaction, scrutinise corporate debt, shareholder balances and the agreed working-capital mechanism.

Dental treatment creates obligations that an ordinary inventory adjustment will miss. Request a reconciliation of patient credits, payment plans, lab work ordered but not delivered, and deposits for treatment still underway. Match those balances to the proposed responsibility for completing the work. Revenue already collected may carry future chair time and laboratory costs.

Define who handles refunds, complaints about prior work and remedial treatment, without making a contractual promise to patients that the clinicians cannot deliver. Indemnities allocate losses between buyer and seller; they do not extinguish another person's rights. Consider whether a holdback, security or other negotiated protection makes recovery realistic. Use the interactive due diligence checklist to keep each financial issue tied to a document, decision and closing deliverable.

A fitted dental office may be expensive to relocate. Compare the lease under both structures before treating the clinic's current address as secure. Check the named tenant, remaining term, renewal rights, permitted use, assignment provisions and any change-of-control language. Review demolition, relocation and restoration provisions against the buyer's financing and expected equipment life.

Landlord consent should identify the approved transaction and any continuing guarantees. Releasing the seller's guarantee and obtaining a buyer covenant are separate negotiations. The practical issues are explained further in our guide to commercial lease negotiations.

For equipment, obtain contracts and payout statements alongside the physical inventory. Decide whether each item will be transferred free of financing, assumed with approval or replaced. Include software subscriptions, maintenance contracts and imaging-data access. A share sale may preserve the contracting entity, but restrictions can still apply. Build a consent schedule showing which structure triggers each requirement and who must obtain the response.

The same purchase price can produce different staffing costs under different structures. In a share sale, the corporate employer normally remains in place. In an asset sale, assess hiring arrangements and any legal continuity obligations before issuing offers. Do not assume a new payroll account resets service or eliminates existing employee rights.

Request employment and associate agreements, compensation records, vacation balances and details of leave or disputes. Separate employees from associates described as contractors and review how each relationship actually operates. Identify which clinicians generate the revenue being valued and whether their agreements require consent or renegotiation.

Individual registration is distinct from corporate authorization and facility permissions. If the practice offers sedation or uses equipment subject to specific approvals, confirm the requirements for the buyer, clinicians and location with RCDSO. The commercial closing date must fit a clinically workable transition. An experienced office manager staying for a transition period can also help prevent billing and scheduling disruptions.

Canadian Dental Care Plan revenue should be tested as a collection process, not treated as a transferable licence. Health Canada's current guidance allows formal participation through Sun Life or claims on a claim-by-claim basis. Both involve direct billing under the applicable billing agreement; patients cannot obtain reimbursement by paying the full bill themselves. See Health Canada's provider information.

For either structure, ask Sun Life and the relevant billing providers to confirm the required changes to provider information, practice accounts and payment instructions. Verify which claims belong to the seller or corporation and where later payments, reversals and adjustments will go. Do not assume retaining a corporation automatically validates every existing account arrangement.

Before closing, prepare a cutover plan covering access permissions, banking, outstanding claims, patient eligibility checks and pending treatment authorizations. Allocate responsibility for submitting and correcting pre-closing claims. Keep a secure reconciliation process for payments received after closing. Schedule the transition so the team can continue patient care while completing the confirmed billing changes.

Suppose an eligible dentist is offered shares in a clinic corporation because the seller says every contract can remain untouched. Diligence reveals that the corporation is the tenant, but a separately owned company leases the scanner. The lease requires consent to a change of control, and the corporation's books contain patient credits with no treatment reconciliation.

A share purchase could still work. The buyer would need the landlord's response, a separate scanner arrangement and a supported adjustment for the patient obligations. It would also require satisfactory investigation of the corporation's history and enforceable seller protection.

An asset alternative would require the buyer's own eligible operating arrangements, transfers and any necessary authorizations. It might make the purchased property and assumed contractual obligations easier to define, but would not avoid the lease, records or treatment questions.

The decision turns on the resulting obligations, cost and execution risk. Record the selected structure and the unresolved conditions in the purchase letter of intent before committing to a definitive agreement.

Can a non-dentist buy shares in an Ontario dentistry professional corporation?

Not on the same basis as an ordinary business investor. Professional shareholder eligibility restricts voting ownership and permits only specified non-voting owners. Analyse any proposed investment and management structure before assuming it can hold the professional business.

Does buying assets avoid the seller's liabilities?

It can help define which contractual obligations the buyer assumes, but it does not provide blanket immunity. Investigate statutory obligations, employment issues, records responsibilities and the actual terms of each assumed agreement.

Is a share purchase always easier for CDCP continuity?

No automatic conclusion follows from the structure. Confirm the provider, billing, account and payment changes required for the particular practice. Include outstanding claims and post-closing adjustments in that plan.

Prepare two short transaction maps: one showing the assets and obligations to transfer, and one showing the corporation that would remain after a share sale. Add ownership eligibility, records custody, required consents and the cost of ongoing treatment to each.

Lamba Law provides legal help with buying a business, including structuring and purchase agreements. Contact Lamba Law to review the proposed dental acquisition before the letter of intent fixes assumptions that diligence may overturn.