Getting financing for more then 2 houses

[Gevin Glines]

Hello! 

So with the saying "great deals will make money come to you" how exactly do you go about getting the funding approved through a conventional loan if there are no gifts or erratic funds dropped into your account allowed for investment properties/loans? Is this something that once you get a deal or deals under contract your partner co-signs and will just take the funds from them?

Thank you in advance!