Rental Income and SDIRA

[Eric John]

Hey guys, I'm looking to purchase a multifamily unit, a quadplex to be exact, with the focus being on producing more household income. I'm considering either using a VA loan to build new or use an SDIRA for a down payment on a conventional loan.

 I was wondering if somebody could help me understand how rental income would be treated off the property if I used an SDIRA. Also, I'm kind of assuming that it can be used for a downpayment and not the entire ask. 

Thanks in advance.