Yes i will do my best to submit it 2 weeks before his birthdayand yes we include her in our family size.
We are family of 3 + my mom + dad + brother + niece = 7
Based on our line 150 we made..
2015 : 83, 606
2016 : 114, 680
2017 : 88, 988 + 15,384 (Maternity EI)
Im just worried because my brother's passport is expired already and i dont have time to wait for his new passport and my dad's passport will expired next year during the process (if i get approve), is it okay if he doesnt have a valid passport right now? They will request for it if everything went okay, right?
Thanks!
You should be fine as your 2015 income is just barely enough.
As mentioned, the daughter of brother will still need to do a medical exam even if they are a non-accompanying dependent.
You must submit before the age lock-in date, so I would do even if on expired passport and include a note that you will send updated passports as soon as they are renewed.