Nothing that you haven't probably read already. Stage 1: put a light lead on and let them free to trail round the house, checking they don't get snagged on anything. 2: gently hold the lead, and follow them 3: start to guide them where you want to go Short amounts of time each stage. Plenty of treats at all stages.
For the record, mine didn't object to the lead at all at first, but we still had days when he'd sit on his bottom and not fancy a walk at all. Agonised over whether it was the hot weather, the route we took, that there wasn't an R in the month, but no real reason really. Treats helped a bit, other times we gave in and brought him home. Can't remember now the last time he fussed, actually.