Received PR in 2006;landed in 2007 then after a week left canada and haven't been there since then. PR card expired in 2012, have SIN. Do I've options to re-enter canada through US border on H&C basis ? I was informed ,entry will be allowed in any case,however,if entered as invalid immigrant then I've to appeal in canadian court.Seeking legal opinion.
If you want a legal opinion, you will need to hire an immigration lawyer. No legal opinions here. All of us here are normal people like you.
What are your H&C reasons for failing to meet the residency requirement? Given how long your PR card has been expired and how extremely little time you've spent in Canada, an H&C claim is pretty much guaranteed to fail.
If you apply for a PRTD, yes, you can expect refusal and for this to trigger the process for your PR status to be formally revoked.
Your only real option is to try to re-enter Canada by land and hope you are not reporting for failing to meet the residency requirement. If you are able to enter Canada without being report, you will then need to live in Canada for 2 years straight before you will be able to apply for a new PR card and know your PR status is safe. If you are reported at the border, this will trigger a process to revoke your PR status. Again, given how long it's been since your PR card expired and how little time you spent in Canada, extremely unlikely an H&C argument will succeed.