Buy first home or rental property

[William Rorer]

I live in a small town, the rents here average about 700-850 a month. I'm currently renting from my uncle and my rent is 450 but my brother also lives in the house so I really only have to pay 250 for rent. I plan to eventually buy the house but I was wondering. Since my rent is so cheap should I buy an rental property first or buy the house I'm in and build up equity and eventually get a HELOC or cash out refi?