Planning to invite parents to visit. I am permanent resident but don't have good income yet. Do I need to send my past tax filings and my employment letter even though it's not much. My plan is to show that my parents are capable to afford financially for entire trip and to show ties that they will be back in a month or so. Will that be enough or do i need to show some financial/employment verification of mine too? Just queries if someone has similar experience. Please advice.