So I believe none are "counted" towards the financial requirement, so I only need to prove £18,600.
Yes, that's correct.
Your answers to 4.1, 4.2 and 4.3 look fine.
For 4.4, yes, it says:
"If you have more than 2 children, please give their details on a photocopy of this page and enclose it with this form"
4.4b - No is correct
4.4f - I would list both UK and US nationalities for the dual citizen children
4.4g-k - Yes, I would put both details
4.4r - just put what is true... if your husband is the only one responsible financially, put just him, but if his ex-wife also contributes, then put both of them
4.4s - No, this doesn't apply to you... it's asking about any children that are yours, but not his (i.e. children that need a visa to live in the UK)
Here it also says "You must provide all necessary evidence listed in section 12" but I assume they mean section 13 Documents? Because Section 12 seems to all be pertaining to MY Passport, not childrens'?
Yeah, that looks like a typo. They mean Section 13.
There's another form that mentions including evidence in 'Part 6', but there is no Part 6 on that form
.
Section 13 - Documents
For all 3 children, I need to send:
1. original full birth certificate (so 3 total)
2. Passports - so I only send UK ones for my dual kids? Or both? Because their birth certificates are US, should I send US and UK?
3. Official correspondence addressed to children (ummm...? NHS letters?) or a letter from their schools? Or??? (This is the bit I was worried about, as I didn't realize this part, and we can probably come up with something, but I wasn't expecting it.)
Is that it for my/our kids?
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No, you only need to send their birth certificates to prove they are your children. That's it.
The other documents are only required if they are ALSO applying for FLR(M) visas.
The paragraph just above the second box says:
If you are applying as the child of a person with limited leave as a partner of a settled person in the UK or person who is in the UK with refugee leave or humanitarian protection and you are under the age of 18 (or children who are over 18 and who have already been granted leave in this category) then you must provide the documents listed below, in addition to those already listed above: