Hi Op, social worker here.
To simplify things, the process is usually:
Strategy meeting>Section 47 (child protection investigation> ICPC (initial child protection conference)
You have to be invited to the conference. You do not need a solicitor for the conference as they would not be allowed to attend.
At the conference there will be: Chair, social worker and manager, police, teachers, health professionals and any one else involved eg. Housing worker etc.
You will be able to see a copy of the social workers report beforehand and any reports other professionals have compiled ahead of the conference.
The outcome of the conference will most likely be either child in need plan or child protection plan. Child protection plan can be under several categories such as emotional or physical abuse, sexual abuse or neglect.
You will be able to speak at conference and a plan will be created if your children are made subject to cp plan.
It is really important to think about what you would like to say and what help would help to sustain you caring for your children. Detail all of the times you have asked for help and the risk of you not having support, eg. Unable to keep your child safe due to their needs, home placement breakdown and the impact on their siblings. Use this as a chance to push for support. The chair ultimately makes the decision and often is very fair and will highlight where social services could have done more or support you should be getting.
They cannot and will not remove your children at this point and the threshold for removal is very high. To place a disabled child would be incredibly costly and not something they would consider lightly.
Make a list of things you need and highlight risk if this does not happen. These could be around home adaptations, respite etc
There are no guarantees you will get all of these but at cp they are much more likely to consider additional support.
I feel for you. It is a very invasive process and as part of section 47 they will review you and your husbands criminal records and medical history and will have access to GP records etc.
They will also have access to your children's records which will hopefully support all of his additional needs and highlight support needs for your family.