Bhai Zaidi. For Leepa valley your route will be like this.
Lahore---Muzaffarabad----- Reshian (2-3 Hrs drive, Heice or caoster can go) ---- Davoo Kan (1 Hr Jeep drive, close to LOC) Back Reshian---- Rest of Leepa Valley
Only one local hotel at Davoo Kan was available few years back, no idea currently but at the moment you need Army permission to go Reshian onwards. For Leepa valley 2 days are more then enough, keep in mind current weather situation and snow condition as well.
You may go for 2nd option towards Kalam, Malam Jabba etc but again have to face snow every where.