Amanda Tenningtons application - Military background.
Jacqucues application - Military background.
Jimmys application - Military background.
Kais application - a zombie, something that is against the authorization rules and would require an owner response to (same as headcrabs)
Lens application - A ghost. Due to the nature of it, it would be best to be left to an owner due to the far spreading implications of having ghosts
Two children applications - same boat as military.
The only application I can spot that doesn't require a owner or lots of detail/time to think over, would be Hendersons.
The reason military authorizations take a long time to stew over, is because they have large implications and multiple things that could go wrong with them. You need to actively hunt them down and watch over them to see if they have the profecient roleplaying skills to carry the authorizations out.