Mortgage and Insurance

So, if I am in the process of GW some collections and lates, should I opt out?  What are the pros and cons?

 

And if I am also in the midst of going for a mortgage, does that change my options?

 

Also I recently saw a post on the mortgage thred that says if you dispute an item it will re-age the account.  Does that mean if I GW something now it will stay on a credit report for another 7 years??!???

 

Seems like navigating credit scores shouldn’t be so difficult.

 

Thanks again everybody?