What’s up @Adam Tamer!
When you say 6 months of historical W-2 income… do you mean that you don’t have employment history prior to that since you were in college? If so, that’s likely where you’re running into issues with traditional financing. They want to see a stable 2-year job history (in general, not necessarily at the same job). Sometimes your time spent in school can even count as employment history.
If you go the non traditional route, then yes, you can get a loan based on the income potential of the property that won't factor in employment, income or DTI. Since those aren't taken into account, FICO is important. Plan to have ~25%+ down, a higher rate and a prepayment penalty.
It's hard to say whether or not you'd qualify for a conventional refi after the rehab is complete….it would depend again on those same factors as before - how much employment history you have at that time, your income and your DTI.
Good luck! Happy to connect and discuss if you come up with any other financing questions.