Asking banks about required down payment for SFR investment loans

[Aaron Hall]

Hi all! Total RE newbie here. I've been reading articles and around the forums regarding funding options for RE investments, and me and my father(partner) are interested in acquiring some SFR units in the future.

My father has mentioned that he has a good relationship with a local banker in town that he could pull 30% down payment for another RE investment. Reading around the forums it seems many have be able to land a 20% down payment. My question is, when I'm calling around the banks and asking about RE investment financing and the down payment that would be required, is it as simple as asking what they require for down payments or do i need a good relationship with a bank before I can ask for those terms(for 20% specifically)? I would obviously much rather find us a banker that could work with a 20% down payment rather than 30%. I have no experience in how these things work so I need advice please. Thanks!