Does a buyer need a lawyer? If you’re considering buying a house or condo in Toronto, you will need a real estate lawyer to help you through the process. What does a lawyer do when you’re buying a condo? Their primary responsibility is to protect your rights and make sure all the terms of the purchase and sale are met by the seller, so that you can obtain the title to the property. Here’s a more in-depth breakdown of what a closing lawyer does while buying a house or condo.