How old is the grandchild?
DebzinUS wrote:Is my granddaughter eligible for citizenship by double descent?
Not automatically.
However, if her British citizen by descent father has lived in the UK for three continuous years at any time in the past, your grand daughter is entitled (i.e. cannot be refused) to be registered as a British citizen before she turns 18 (
Section 3(2) of the British Nationality Act 1981)
Alternatively, if she moves to the UK with her British citizen by descent father and resides in the UK for three continuous years, she is also entitled to be registered as a British citizen before she turns 18 (Section 3(5) of the British Nationality Act 1981).
As the US is not a Commonwealth country, your grandchild won't be eligible for an Ancestry visa in the future either. So, if she is not registered before 18, there will be no easy way to claim British citizenship based on your British citizenship.
If he plans to bring his wife and daughter to the UK, your British citizen by descent son will have to demonstrate that he has a salary of atleast £22,400 per annum for at least a year already AND that he has a job offer for the same amount in the UK. Alternatively, he will need to show savings of at least £72,000 held in an accessible bank account for at least six months.
I am not a lawyer or immigration advisor. My statements/comments do not constitute legal advice. E&OE. Please do not PM me for advice.