My fiance has 2 children 2 and 5.
I dont have work right now.
So in order to apply for her visa 1 I understand I need a job? Is there a period of time or minimum time for holding that job before Iwe're allowed to apply?

Can she be sponsered by someone else on a fiance visa if I dont have a job?

Its unlikley I will be able to afford to bring her and the children as quickly as her alone due to the added cost of flights (what extra do 2 dependants on a marrage or fiance visa cost?) So she suggested I bring her first and we save together both working. Do you have to pay again from fiance visa to marrage visa? If so does it pay to get married first and apply first time for that?

I read that you caNT change a visa from within UK but surely from fiance to marrage visa is an exception?

Im sure I have more questions but cant think of them right now