Can a unit leader be force choked be as long as that unit is not a commander or opertative? Also, can a force user use force choke while also in melee or use force choke to choke another unit which is in melee? Thanks

Yes, yes, and yes.

Thank you!!

It's a good way to make a unit with a multi-wound leader vulnerable to the Hunter upgrade until the unit is defeated, as well as making the unit unable to reliably hold an objective.