How old is your daughter? If she is past her 18th birthday on the date of application of her first visa, she is no longer a child and you will not be able to sponsor her. The answer below is predicated on her being under the age of 18 on that date.
Moving non-British family members to the UK can be very challenging and very expensive.
As
CR001 has mentioned above, you will need to either (a) hold a current job outside the UK earning more than £22,400 per annum AND have a confirmed job offer from the UK for a salary meeting the same earnings requirement OR (b) move to the UK on your own, get a job with a fixed salary amounting to £22,400 and then sponsor your husband and daughter to join you in the UK after at least six months of salary slips OR (c) demonstrate savings of at least £72,000 held in an easily accessible liquid account for at least six months.
Your mother will need to meet the same requirements to sponsor her husband (your father). If your mother will not be working in the UK, the only option seems to be (c) above, except that she will only have to demonstrate savings of £62,500, as she is only sponsoring one dependent.
The cost of the visas for your duaghter and husband will likely be £1625 (
USD 2171) in applications fees + an Immigration Health Surcharge of £1875 per person. So, in total, about £7000 for a 2.5 year visa for two people. That visa will need to be renewed before the end of 2.5 year period for another 2.5 year period , when the fees will likely be higher. After they complete five years, they will need to spend a further £2350 (current fees) to apply for ILR, before being able to apply for British citizenship.
Assuming that your mother meets the savings requirement, your father's fees will likewise be £1625 application fees + £1875 IHS for 2.5 years.
EDIT: Your daughter *
may* (I am not sure) be able to register as a British citizen if after you are registered under Form UKM, you, your daughter and husband live together in the UK for at least three continuous years. Provided that she is still a minor at that time (after the three years of residence in the UK), your daughter *
may* be able to register as a British citizen.
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.
