Can I do this?

I don't think so---because I believe a certified letter has to have a signature. Again, I am not sure--you can also go to the USPS web site and search for answers there.

You can, what the post office does is put the slip saying that there's a letter to be picked up in the PO box. When someone comes to pick up the mail, they go to the counter and sign for the letter.

It's the same process as if you weren't home when the post office delivered you something that had to be signed for. They just leave that little slip and you have to go pick it up.

Thanks for all your help!

Goudah is right in explaining how the PO Box system works.

I think the company using the P.O. Box might take longer to pick up their letters. And if they really don't want to pick any letters, your point of asking for validation of the debt or putting a dispute with the company goes completely wasted before the creditor has already filed a case. Quite possible??

Well the company is allied interstate and I will just mail the letter to one of their locations that has a street address. I think it is a tactic they are using to throw me off.

Post Office Boxes are legit for CMRRRs.
I use them all the time.

Another point, i would like to add,
Whatever address they place on their
Validation Notices and/or your Credit
Reports, use it for sending any mail
to them.