applying ILR for daughter and not wife

[happypie]

I am on ILR and eligible for citizenship as well.
My wife and daughter are eligible for ILR and currently on Tier 2 general dependent visa.
Due to financial and personal constrants I want to apply for ILR just for my daughter. Is it possible? Or do both of them need to apply together? If applying for daughter alone, do I submit some kind of letter explaining why I am not applying for wife now?

Please guide, thanks.

[zimba]

Assuming your daughter was born outside the UK, she will not be able to settle unless her mother also settles. Children do NOT have a min residency requirement and they settle when both parents settle. Your child will follow the immigration path of her mother and can only settle with/after her. I suggest doing the opposite: applying for your wife's ILR first and then applying for your daughter's ILR later when you are in a better position.