All they did was forge the confirmation to transfer the property title of the land to the state which is one step closer to Jodio owning it. As for how it makes Jodio closer, we'll just have to keep reading.
If that thing in Dragona's body was the entirety of her Stand, she would be dead but since it appears to be a colony Stand, it only did minor damage to her.
By 'rights' it's talking about property titles and Charmingman trying to go on Howler's land it owns the rights to would get the state to 'obsruct' him because it defends those property titles.
Value being subjective is undeniable so perhaps the concept of value will be like how fortune or misfortune (Parts 7 and 8 respectively) are as those are both subjective as well technically.
For a second I thought he left mid Stand battle to go get some McDonald's until I read that he had the burgers the whole time. That would have been a funny joke though.
It's the same Rohan. Except I don't think he's 44 like he would be in the Phantom Blood universe in 2023 when this part most likely takes place. The only difference is that he's likely younger in the Steel Ball Run universe. But Araki does draw older people looking younger than they should all...