[@Specter189]

I recommend doing your work in a word doc, it will catch a lot of errors. Not totally necessary, though. 

Personality: 
He possesses 
The sentence may work better with - courteous as he may be - for that type of interrupter. Just a suggestion.
courteous 
Often flipping - he often flips
modicum 
appearances 
exacerbate 
exasperation 
Personality paragraph 2: Fortunately -possible comma?- for him -comma-
Bio paragraph: he
world -no comma-
Last paragraph: At first -comma-
On a split decision -comma- 
inheritance