In Immigration Appeal Division (IAD) you can appeal a negative decision on a sponsorship refusal (if you sponsor your wife/husband or parents), permanent residency obligations (when a permanent resident loses their status due to lack of physical presence in Canada),
Permanent Resident Card and When it Needed
Many of my clients are under the impression that the renewal of their permanent resident cards (PR Card) are mandatory upon its expiry. This is wrong as you only need your PR Card when travelling outside of Canada. It is