2 names on deed , 1 on mortgage possible?

[Sarah Jones]

Im trying to buy a house with my boyfriend, I have a job and will qualify for the loan but i do not have enough downpayment. He will provide the rest of the down payment. We are doing it as a 50/50 deal.

1. I am getting a loan through the bank, if i am getting a mortgage under my name only... he wants to be on title.. will the banks allow his name to be on title even though he is not on the mortgage?

2. do i need to document anything else to show that this is a 50/50 deal meaning if we sell we will split the profit 50/50, what documents that we will split profits 50/50?

3. is the deed the only thing that needs 2 name or other things