Making sure there is one space per bedroom occupied.

You can certainly refinance a home you do not occupy as your primary residence. 

This will be owner-occupied however I was told a conventional loan would be best because I have a business (sole proprietorship) that reports a net loss for last year and this will lower my income if I go with a FHA loan.

I assume you bought it as a primary residence, but your taxes will jump 2.5-3x the current bill when the County realizes you don't occupy it.

Owner occupy one side and rent out the other.

@Andrew Freed you do not need to bring 20% down for conventional mortgages if you are owner occupying.

This home stays occupied and has made us great return since we listed it in April 2020.

Total Doors: 6 (All owner occupied duplexes)

If it's safe to occupy now, seek a HELOC.

I've also read conflicting information about the required percentage down for owner-occupied properties with conventional, is it still 5% or has that increased?