This team should include professionals like agents, lenders, contractors, and property managers. 

If you are using a hard/private money lender that actually vets the deal (not just you), you might have some leverage.

Maybe some specialty programs exist for prefab homes or a custom ADU builder might have his own lender partner they could refer you to... but unless you yourself are an experienced home builder with a track record in ground-up construction, you're basically looking at a hard money or a HELOC.

Have a back up lender as well.

The cash flow left over after reserves, my mortgage, and other expenses is the cash flow that I "pay" myself / my business. 

You can also speak with a lender to see what you need to do to qualify for a mortgage if buying a house down there is one of your goals. 

I recommend connecting with an investor-friendly lender that can give you an idea of what you will be able to afford based on your DTI, credit score, and current income & assets.

Did you work with any real estate professionals (agents, lenders, etc.) that you'd recommend to others?

There is also a "Myth" I would like to debunk - It does not matter how long you have been with your bank you still have to qualify for any and all loans and mortgages. 

If this is an investment property the max a lender will allow is 80% LTV on a cash out (if DSCR is over 1.00) and 75% CLTV on a DSCR second (if DSCR is over 1.00).