My firm currently has a buildable quarter acre infill lot available, but I'm mainly trying to gauge builders buying criteria, price and overall thoughts on building in that area.

You can also rent the units from vendors who will install and service them and will share in profits but at least you don't have to worry about it.Overall I'm a fan of cc payment - scrapping for quarters is annoying, this is 2024.

I just am trying to decide if I need a door and/or wall between the sleeping quarters and the living area to appraise as one bedroom. 

@Vikranth BiradarI recommend finding a tax strategist that specializes in real estate taxation, REPS and cost segregation.

Most of the cash out refinance lender require me to move the property from my LLC to my name for the refinance, is that a normal operating procedure or is it a taxation nightmare to move it back to the LLC after the Refi? 

For OK state taxation, your rental income is your NET income (or loss), just like for Federal.

Quarterly Inspections needed?) 

We're thus able to evaluate our rates, and keep pace with inflation, on a monthly and quarterly basis.

I recommend working with a tax strategist that specializes in real estate taxation and LLC formation to maximize your tax deductions. 

@Fred KahnI recommend finding a tax strategist who specializes in real estate taxation and tax planning.