We also strongly suggest that you contact the nearest lawyer who is familiar with Canadian immigration issues for some additional information and assistance with your situation.
I hope this information is helpful. Please let us know if you have further questions and if there is any follow up to your question/situation.
My husband and I also had a problem to conceive a child long 5 years. We also did surrogacy but in Kiev. We chose Ukraine because it is absolutely legal there. And we have paid around 30.000 euros for everything. We hadn’t had some problems with documents because our clinic made all paperwork in the Embassy and we safely took our newborn son home. I think that legal part of the clinic is also an essential issue when you deal with surrogacy!