Appointee ESA migration

Hi, I have 2 adult children. Both get full pip, higher rate for care and mobility on ongoing 10 year awards. One lives at home the other in social housing. They both get ESA income related and are in the support group. I have read through the members guides and am a bit overwhelmed at the thought of them both migrating, but am confident with the guides on here about filling in the forms online when they need to migrate. I am an appointee for both but can I set up an online account for them both using my email address as the appointee for them both when it comes to migration. Also do you have to just scan ID and other information/paperwork to be uploaded to the application. Lastly our son gets housing benefit so struggling to understand what info do I need exactly for that and will they pay his social landlord directly as he can’t manage his finances well. I am aware I need to put and quote the regulation about transferring from support group and that they do not need to commit to any work/claimant agreement, is this correct.

Thank Gary for the quick reply but as an appointee can I set up two separate accounts for them using my email address. I have issues with motabilty online because I am appointee to them both and just wondered if using the same email address would be an issue.