I am planning to visit Canada for about a week from US. I am in US for about 1.5 months with B1-B2 Visa. I have applied for Canada visa in visit (6 month or less) category.
My friend, who is permanent resident of Canada, has invited me, stating - I am his friend, and provide accommodation, food, travel inside Canada. We used to work together few years ago in our home country. I have already uploaded the invitation letter. But It the submission website requires proof of relationship.
What document can I submit as proof of relationship with my friend?
Edit: Screenshot of the online form that asks for proof of relationship
When I click the ? mark near it, following information appears
You must provide proof of your relationship with your host or family member. This can include:
a marriage certificate
Statutory Declaration of Common-Law Union (IMM5409)
a birth certificate
an official document naming you as a parent
a copy of the inside back cover of the inviter's passport showing the inviter's parents, if applicable