Found the post
Oh @Francis and @111 if only my mum had the humility and support to ask such a question and take concerned and considered actions.
I had a similar experience to your daughter ... in being a young mum with inappropriate MI brother ... except that I never cut anyone out or requested any exclusions.
I think it is VERY REALISTIC to set limits on son but not total exclusions ... family holdays and anniversaries etc should be open ... and recognise that the young child and his or her relationship with young mum also need protection ...
Time will tell ... but I deeply wish you do not go through the horrors that I did with my mother being in denial about MI and doing some very dastardly things to me and my motherhood.
I will describe them for my benefit and maybe others can learn HOW NOT TO MANAGE this situation.
Expect some escalation of unresolved sibling rivalry but I believe if you mange it well ... you have a chance to have genuine family events.
Whn my biological daughter was 6 months, and we were visiting the family home where brother was living. Note my brother had had about 6 hospitalisation at this time and his grief re sister's suicide complicated by his past incestuous rel with her. He usually refused treatment and medication but "self-medicated". He had a flare up and was psychotic and borderline because of what was going on in his marriage and mother being a general self-righteous nag and an ignorant nag ... I did my usual to try and reduce his distress and de-escalated as I had done often in the past. He demanded I give my baby daughter to him to hold ... and I was caught in great quandary ... I loved bro ... and turned from husband to brother to mother ... she said I should ...I talked him down ... he agreed to go to a therapist and I handed him my baby girl for about 5 minutes whilst hovering anxiously over them both ... then he handed her back to me. Mother was satisfied and we avoided calling the police or ambulance that time. Apparently it proved he was not going to hurt anybody because he was a good person
PROBLEM: He never really followed through with therapy or meds ... over the next 8 years violence to property, self and threats (mostly to my mother) escalated ... I know my mum had a hard road ... and always counselled against accepting bro's violence ... but she did not do the right thing a lot of the time ... did not seek professional help ... and hated and blocked my attempts to get it ... had all the help she needed from God etc .. and her priests etc.
Dont play into that kind of BS ... my brother had a gentle side too ... but manipulations to prove that psychosis or rage are suitable conditions to handle vulnerable BABIES in are not on.
After .. my husband and I agreed that it had been wrong to succumb to the blackmail but let it go as nothing had happened and we were dealing with a lot with his ex carrying on like a pork chop .. my ex husband and I agreed on a lot of things ... but he was also a bit arrogant about my whole family as coming from a "lower" socioeconomic level of society.