As a result of hitting a nerve H asked his L to contact me and suggest I back off from sending info that upset him and cause him distress.
Our son has been seriously ill, H's L has suggested that in keeping H informed I have clearly achieved my goal of causing their client distress and that their client would like to be involved but wasn't able to be at this time. etc etc.
So I have now decided to completly back off, I have over the passed 12 months passed on info relating to our sons and business, but quite clearly this is not welcomed.
But at least my L now has a clear picture of what I am dealing with, so do my family and MIL. H has just shot himself in the foot and his L helped him do it.