ILR for tier1 dep person

[Desik]

Dear Forum moderators ,gurus and helpful members

I got few queries regd my wife's ILR application . I am a naturalised BC through tier 1 5 yr route (ILR Aug 2014).My wife , currently on PBS dependent visa ,arrived first in UK on Dec 3 rd 2012.She will be completing 5 yrs in dec 2017 and I have booked her ILR appt on dec 2nd 2017at Cardiff
She is currently , not working, on extended maternity leave until feb 2018.
Few of my queries :
As a tier 1 dependent ,do I have to satisfy any income criteria or any maintenance funds for her application? Can I provide her payslips including her maternity pay( SMP until August 2017)although she is not working for the last 13months or Do I need to provide my pay slips(6 or 12 months?) and corresponding bank details to satisfy income criteria ? What about maintenance funds-should it be in my name , joint name ?
Also , does the co habitation evidence needs to be the last 5 yrs or last 3 years since I got my ILR?
Documents I will be submitting -marriage certificate, Joint utility bills, rental agreement Joint and individual bank account statements,her passport and BRP, her P 60 ,letter from her employer,mine and my daughters British passport copy , B1 English Lang cert and Life in the UK cert ? Any other documents we need to provide?- my payslips , my employer letter?
Any help will be highly appreciated.thanks for your valuable time efforts and inputs
Desik

[CR001]

do I have to satisfy any income criteria or any maintenance funds for her application?

No.

Also , does the co habitation evidence needs to be the last 5 yrs or last 3 years since I got my ILR?

2 years preceding date of application.