The answers are:
Yes, he can pardon her.
Only for Federal crimes
Google: Ford, Nixon Pardon
Yes, he will pardon her.
Yes, He will pardon others.
He will do so to keep his half white ass out of jail.
Many foundation crimes are state or international where Obama has non jurisdiction
An Obama pardon would be as much a curse as benefit because it would expose the Clinton crimes and piss off the American public
The Clinton's are tied to criminals all over the world.
The Clintons just cost a lot of very bad people a lot of money
These very bad people do not enjoy being investigated and they have already made Clinton problem people assume room temperature