buying a 4 plex and living in one unit

[Seth Brown]

I currently rent from my parents and graduated from college 2 years ago. I have a full time job and +700 credit. My parents are wanting to sell the house so I need to move. I was looking to buy a duplex and rent the other side but am having trouble finding one. I did find a 4 plex in an area that is growing quickly but the list price is more than i originally planned on spending. Only renting 3 units it’ll still cash flow. I was hoping to use future rental income to qualify but there are no current leases. I can i count future rent with a factor or am i dreaming. Trying to be creative but not sure how to finance.

also my first property and post on here so open to any opinions about residential real estate.