Let's not bold things right away. It fails to account for discussions that will inevitably take place over a day. Toward the end of a discussion, various people can then sum up the conclusions from their perspectives. The page is a mess of bold words, and it's only been a few hours!
The captive. Give him clemency only after he tells the other local nobles, Sir Denton and Sir Percival, and is read his confession with these lords as witnesses, and is observed putting his mark (such as it may be) on the written confession by them.
Wool merchant. Get the rat to send one of his best con-men as an ordinary clothing merchant wishing to sent up a fairly profitable but not outlandishly good deal with him, ideally by approaching a small wool merchant first that's obviously not able to meet the order and getting a referral to the big player. As ho-hum and plain jane as business transactions can be. The hotel where the meeting takes place should be near the docks. We personally intercept him with our rangers on his way to the meeting, and haul him aboard our ship. Off to the duke with captive and confession. The duke can break him through torture, or simply connect the dots.
Let me be clear what happens if you approach this like a 21st century legal case with polite litigants: you get a floating body in the harbor of folesden that won't be selling much wool any more. The count gets off.