Hello HMKS,
I am not certain about the requirements for your children, but I don't think you will need too much since they already Canadian citizens. For the finances... I don't think you will need much proof at all. Your husband will need to send Option C as stated in the application if he has that from any prior years of work in Canada, but I don't know how long that has been. I would send a copy of joint bank account statements and if he has a job in Canada/offer I would sent proof of his salary.
I don't think this is a ton of help, but I thought I would try. Good luck!
I am not certain about the requirements for your children, but I don't think you will need too much since they already Canadian citizens. For the finances... I don't think you will need much proof at all. Your husband will need to send Option C as stated in the application if he has that from any prior years of work in Canada, but I don't know how long that has been. I would send a copy of joint bank account statements and if he has a job in Canada/offer I would sent proof of his salary.
I don't think this is a ton of help, but I thought I would try. Good luck!