Unless needed, a special harness is not required to properly teach this dog manners on lead.
What you needed to do is STOP, and immediately turn in opposite direction. no if's and's or but's.
You do this a few times, he will get the hint to behave. This dog has you right where he wants you!
You give in to his silliness, and to him he thinks GEE...I get mom's attention if I do this or that. Any attention you give him he is eating it up, and it doesn't matter if its good behavior or not. He's getting it.
Unaccepted behavior in the home with your husband is not acceptable. He needs to be corrected. Biting & nipping is again not acceptable.
I will keep trying the abrupt turning, I have done it, but is does not seem to help, he still tugs like he is pulling a sled. I did not realize that pulling was a way of getting attention, he certainly looks preoccupied when doing it, always has his nose to the ground.
I wish the husband would be more cooperative as well, he seems to undermine what I am doing and this makes it difficult for me to keep any training consistent. I know when Laddie is with me, he calls him to take him outside, I hate this, but he does it anyway, also, he feels a dog should be out a lot, I do not, so, when he lets him out, I have to bring him in, it is a mess.
I had none of these problems with my first Laddie, but then, it was basically just he and I, my first husband, could have cared less and did not try to take over. What a difference in dogs as well, but, I realize they all have their own, individual personalities, that is what makes them so endearing.
I say Steve should get another Labrador, he loves them, and he misses his, his is gone due to a divorce a few years back, he has not gotten over the dog OR the divorce, my life has not been too great since being here or married. Oh well, que sara sara.