Upvote:-1
The fact your future spouse is on LLR suggests that they are neither British or an EEA citizen which is important as it means that you gain no immigration advantage in marrying them.
Technically, you're not allowed to get married as a visitor and need to hold the proper entry clearance. For the reasons I've stated I doubt you'd encounter a problem getting the visa, assuming you have a job or some other ties to Canada.
Upvote:6
If youβre planning to visit the UK with the intention of getting married, you should apply for a Marriage Visitor visa (MVV) https://www.gov.uk/check-uk-visa/y/canada/
If you donβt have a MVV you can still give notice of your intention to get married or form a civil partnership but the immigration authorities at the Home Office will be told.
The Home Office might:
ask questions about you and your relationship - if this happens you may need to wait up to 70 days before getting married or forming a civil partnership
decide not to approve your notice - if this happens you cannot get married or form a civil partnership in the UK