Mortgage and Insurance

Still kinda of new to this board and I’ve been doing a lot some reading about the “statute of limitation” issue. I’m wondering if you  have a medical collection on your report that’s unpaid if it would be possible to use the ”statute of limitation” issue to leverage a PFD letter . Thinking of collection that need to get rid of that’s over 7yrs old . It’s not being collected but it’s a little more than I can afford to pay at this time and just wondering about contacting CA and offering settlement (maybe 1/2 of what’s owed) based on fact that collection is so old. Anyone think this will work?