Hi all. An entire year after I applied, I finally called Immigration to see what was happening with my application for Permanent Residential Status. They had the papers already approved, and apparently they either forgot to send the postcard to notify me, or the post office lost it, or my parents-in-law did something with it (unintentionally I'd guess).
Just thought I'd thank those here that helped me figure it out. It's great to have Permanent Residential Status as it opens more options for me.