Looking for an expert in importing products into Canada and knowing the various regulations and certifications needed for those products. Any takers?

We are medium sized enterprise looking to pivot from our existing business into the import and distribution. We have the ears of buyers but at the moment need new products. How do we know if the products we are considering are compliant to Canadian regulations and laws? When it comes to toys, electronics and pet products, how do we verify if a factory actually has the certifications it claims. I'm asking anonymously for the privacy of my company and our clients. I will give pertinent details if required should we choose to speak.