Discreet Retreat Political Battle: Move your target Courtier home: Give a target Personality +4F or -4F.
Because you choose targets and then pay costs, it is legal to give the same courtier you move home the +4 force, correct?
Discreet Retreat Self Targeting
A topic from AEG's L5R CCG Rules forum, copied for Oracle of the Void from a copy of the forum saved in October 2015, so pages it didn't save are missing. Players' names are left out; the rules officials are named. Rulings are as they stood on these dates; later rulings, the rulebooks and the Rules Archive may differ.
Yes this is legal.