Child Visa Application - Timing

[joebloggs]

My wife has sole responsibility for Martin and his father is not mentioned on his birth certificate. I assume that this means that on the form VAF4A the reference to the sponsor and the financial information must all be related to my wife's situation.

LV

the embassy might say ,who ever is looking after him now might have sole responsibility for him'

who is looking after him, how long have they been looking after him ?