This should be its own thread.
I have dealt with Sean and he was a stand up guy. I fear he may be guilt by association. Regarding Mathis, I did one deal with him - I traded him a Manning and Brady rookie for a PSA 8, Allen and Ginters, Cap Anson, which I consigned to PSA (and got killed on). I hope that 8 wasn’t jacked - I don’t think it was - but based on the thread, I am afraid the Manning and Brady may have since been worked on and recirculated (zero clue or indication that they have). I will try to find pics of the Manning and Brady when I owned them to post.
Full disclosure, I am a broncos fan
Edited - here is a link to a pic of the Manning I used to own. I cannot find the Brady:
https://www.flickr.com/photos/156271...7689561527103/
https://www.flickr.com/photos/156271...7689561527103/