I am a UK national, my wife (Kazakh national) is here on a Marriage/Spouse visa. We have a baby on the way and since we are in our 20s, my wife's mother (also Kazakh national) has kindly offered to come and help us with the baby, whilst we get on our feet career wise.
A family visitor visa is too short, as we would like her to stay for at least a year.
We cannot invite her as a dependant, because boldly speaking we are dependants ourselves

We are confused by all of this and would appreciate some guidance!
Thank you very much!
Andrei