When I first wrote about real estate lawyers on this website, back in 2006, I was answering a question a buyer had asked me: if I have a great agent, why do I also need to pay a lawyer? Twenty years later the answer has only grown clearer. Your agent and your lawyer protect you at different moments, with different tools, and the work your lawyer does is the quiet, technical layer that decides whether the home is really, cleanly, legally yours.

This page is about that role, not the fee. The fee is the easy part to look up; what most buyers never see is everything a lawyer does to earn it. So let me walk you through it, the way I would if we were sitting together before your offer.

Do you actually need a lawyer to buy a house in Ontario?

Yes, and not just as a formality. In Ontario you need a real estate lawyer to complete a residential purchase: the transfer is registered through the provincial land registry under a lawyer’s professional responsibility, and your realtor does not close the deal or give legal advice on title. Some provinces let other professionals handle the conveyance. Ontario does not, and that is a protection, not a nuisance: it means a trained professional is accountable for searching the title and registering your ownership when your money changes hands.

The one thing I will press on: bring your lawyer in early. Ideally before you sign the agreement of purchase and sale, so they can read it for problem clauses. At the very latest, during your conditional period, before you waive your conditions, so any problems surface while your conditions still protect your exit. Most buyers contact a lawyer only after the offer is firm. That works, but it is the weakest version of the protection.

The protection checkpoints your lawyer runs

Here is what is actually happening in those weeks between a firm deal and your closing day. Each item is a place a problem gets caught.

  • The title search. Your lawyer searches the property’s history in the land registry to confirm the seller genuinely owns it and has the right to sell. This is the foundation; everything else builds on a clean title.
  • Liens, executions, and unpaid claims. They search for mortgages, liens, and other encumbrances on title, for writs of execution against the seller, and for municipal property-tax arrears, the kinds of claims that would otherwise follow the home to you.
  • Reviewing the survey. If a survey exists, your lawyer reads it for encroachments, easements, and boundary issues, the physical-reality problems that title alone will not show. More on surveys below.
  • Requisitions. When the search turns up a defect, your lawyer raises a formal requisition to the seller’s lawyer to fix it before closing. This back-and-forth is where title problems get cleared, quietly, before they become yours.
  • Title insurance. Your lawyer arranges an owner’s title insurance policy, the single strongest protection against title fraud and against losses a survey would have revealed. (This ties directly to the fraud risks I cover in the GTA real estate fraud guide.)
  • Closing adjustments. They calculate the adjustments so you reimburse the seller only for their fair share of prepaid property taxes and utilities, and not a dollar more.
  • The condo status certificate. On a condo, your lawyer reviews the status certificate, the building’s financial and legal health record. That review is a job for a lawyer, not your agent; I explain what it contains in Anatomy of a Safe Condo.
  • Registering the transfer and the funds. On closing day, your lawyer registers the deed and your mortgage and exchanges the money with the seller’s lawyer. This is the moment ownership legally transfers.

None of this is visible from the outside, which is exactly why buyers underestimate it. The lawyer’s value is measured in the problems you never hear about because they were caught in week three.

Survey versus title insurance: still not the same thing

This is the question I was answering back in 2006, and it is worth updating for how things actually work now.

A land survey is a physical map of your property, prepared by an Ontario Land Surveyor, showing exactly where the boundaries, buildings, fences, and easements sit on the ground. Title insurance is an indemnity policy: subject to its terms, it pays you for covered losses, including many that an up-to-date survey would have revealed, and it is also your strongest protection against title fraud.

In 2006, the standing advice was to demand a survey on every purchase and never treat title insurance as a replacement. The market has shifted since then. Today most Ontario lenders accept title insurance in place of a current survey, and the great majority of resale homes close on title insurance alone, without the four-to-six-week wait and the cost of a new survey. That is a legitimate, lawyer-guided choice, and often the sensible one.

But the underlying truth from 2006 still holds, and your lawyer will tell you the same: title insurance pays for a boundary problem; it does not show you where your boundary is. If you plan to build an addition, put up a fence, install a pool, or you are buying an irregular or rural lot, a current survey is still the right tool, because permits and neighbours turn on knowing the exact lines. Title insurance is the financial backstop; a survey is the map. Your lawyer helps you decide which your specific purchase needs.

A signed seller disclosure does not replace any of this

You may be offered a Seller Property Information Statement (SPIS), a form on which the seller answers questions about the home. Know that the SPIS is voluntary in Ontario, a seller is not required to provide one, and that a signed disclosure is not a substitute for your lawyer’s searches or your own inspection. It reflects only what the seller knows, or chooses to say, and it has historically been a source of disputes. Treat it as one input, never as your protection.

When you should pick up the phone

Your lawyer is not only for closing day. Call them early when:

  • You are about to sign an agreement and want the clauses read first.
  • Something on the property looks off: an encroaching fence, an old unpermitted addition, a tenant in the home, a name on title that does not match the seller.
  • A condo’s status certificate raises a question you cannot answer.
  • You feel pressured to waive a protection and want to understand the real risk first.

It is far cheaper to ask the question before closing than to repair the problem after. A good real estate lawyer would always rather take your call early.

A note on the fee

I have kept this page about the lawyer’s role on purpose, because the role is what is misunderstood. The fee itself is straightforward and I keep it, with the rest of your closing budget, in the closing-costs guide: plan for the legal fee plus disbursements like the title search, registration, and title insurance premium. What you are paying for is not the paperwork. It is the searches, the requisitions, and the judgment that make sure the home is clean before it becomes yours.

The teacher’s summary

In Ontario, a lawyer is not optional, and that is good news. Behind the scenes they search your title, clear defects, arrange title insurance, advise you on whether you also need a survey, calculate your adjustments, and register the ownership that makes the home actually yours. The single best thing you can do is bring your lawyer in early, before you sign if you can, so their protection runs ahead of your commitment instead of behind it.

This is the part of buying I have always cared most about, because it is where the quiet mistakes happen. If you are choosing a lawyer, or you want to understand what your lawyer will be doing on your behalf, ask me. I work alongside the lawyers my clients trust, and I am glad to help you line up that protection before you need it. This is also one step in the larger home-buying process in Ontario, if you want the whole map.