Maybe, but not necessarily.
Unless you're buying the house all cash and don't need a mortgage at all, you might want to re-consider your decision not to include a financing condition, and here are a few reasons why.
1. Are you properly pre-approved?
Most independent mortgage brokers will get all the information they need and do a proper credit report when pre-approving you. Big banks, however, will often not thoroughly discuss income and debt not reported on credit reports, and sometimes base your pre-approval on your history with them without even doing a full credit report up front. Obviously, this can lead to some troubling reversals after an offer is made and submitted for financing and they see something they don't like on your full credit report or financial information. And even if you're the poster child for fiscal responsibility, no system is perfect and there could be errors on your credit report which will need to be address and fixed - a process that can take time. I've seen this happen. Fortunately, a mortgage broker caught it while doing a pre-approval, and the client was able to first get it resolved before proceeding to shop for a house. That would have been a very stressful time if they had already bought a house and couldn't close.
2. Discrepancies between credit reports
Similar to the surprise of errors, there can also be discrepancies between one report and another. I have seen a full and proper pre-approval done on a client. Then when the offer was submitted, a credit issue still came up. Why? The broker pulled a report from one of the major Canadian credit reporting companies and it showed clean. The lender, however, pulled a report from the OTHER major credit reporting company, and there was an old credit issue that had fallen off of the first report but was still reported there. It was enough to disqualify them from financing and they didn't have a lot of options for lenders at the time. It could be differences in the time the company keeps an item on your history, or it could be an error on one not showing on the other. But either way, there could be a discrepancy between one report and another that leads to problems.
3. Sometimes "appraisals go bad"
Even if everything is okay for the qualification and the bank wants to lend you a million dollars, the mortgage appraisal may come in lower than expected. If the mortgage company feels the property is worth less than you have offered, they will only give you a mortgage based on that amount. So as an example, you have offered $700,000 but the lender's appraiser thinks it is worth $550,000, they will give you a mortgage based on $550,000 and you will have to cover the shortfall out-of-pocket. If you're in a conditional sale, you have options such as trying to negotiate a price reduction or walking away. But if you don't have the financing condition, you are in a binding contract to close at that price and failure to do so could result in a lawsuit and at the least, the loss of your deposit. For a bit more on this, visit previous article [ "When appraisals go bad" ].
4. The property also needs approval
Besides your financial qualification and the appraisal, the lender is going to look at the property itself. They could take issue with any number of things about it from property condition to location. I've seen one lender refuse to approve a purchase in the country because of railroad tracks they felt were too close, and that buyer didn't have a lot of lenders to choose from based on their personal situation. I've also heard of problems with mortgage insurance cropping up unexpectedly because of a house being a former grow-op - something the buyer couldn't have known but was on record with the insurer! You never know what might come up.
So, unless they are in a very strong cash position, I always advise my clients to keep some kind of financing conditions if possible, even if they have been pre-approved. Removing them can be a real risk with some factors beyond your control.