Lol welcome to you too mate. Yeah SA I don't think can be very nice, shame must be really hurting. Like a madly inlove guy and his girl leaves, not nice. My deezol was avoiding us till his little brother arived. Now he a little dominant over his brother, but that will be fixed in training academy.
As for leash problems, what I'm doing is letting him play (run) around with I kinda heavy chain leash. It doesn't bother him at all, just now and then when I actually walk with him, he at times notices the leash is on and will stop straight away lol. I re direct him on a forward motion and he walks perfectly calm next to me.
So I'd say let him run around with his leash attached, but keep an eye on him as the leash can tangle around thing. My pups are only 2 months old, so I try and print they're minds out now already lol. I ask people for assistance but with no luck, people are only friendly when given something and not thinking that if they give a little that a bigger favour may be returned. But every spirit is different and we can not change the way people or even dogs think. I'm a spiritual being with amazing gifts, and if people don't help that's ok, part of our path. As long as we share our love to everything else and work as service to others we actually do our good. With this dogs I take it the same way, they have a lot to serve us as we serve them.
On here I actually feel that there's loads of knowledge in for us, we should all just get to know each other.
Nice meeting you tho, nice having someone in the same boat as I, this way learning has a further potentual.
Good day to you