BRRRR Financing proof of income

[Fher Madrid]

I'm new to REI and have bought 3 properties (BRRRR) using broker financing, which has required proof of income for the purchase and refi, and I've been able to fulfill this requirement with my full-time job. I'm a new mom looking to quit my job and rely solely on REI (BRRRR) purchases for income. Can this strategy still work without a full-time job for proof of income when doing the cash out refi? If so, what are my options in order to get the refi approved?