We were shocked at the cost of goods, lumber, cabinets, paint, plumbing.

(i.e. initial decorating and painting, bookings, rate structures, marketing, bookkeeping housekeeping, etc)? 

Choose my own real estate agent

The property is livable, but I am account for a pretty significant turn in 4 - 7 years of paint, flooring, and any miscellaneous repairs that the inspector could have missed since it was occupied.

I provide short term rental furnishing and renovation finish list that includes paint colors, light fixtures, cabinets etc.

 @Raif Jochim without knowing details of each loan, I would almost always choose the primary home.

The property itself should bring in revenue ( even if you choose not to live in one side) and generally a bank will accept a portion of that rental income into the calculation. 

Each of the 5 warehouses on this campus will require updates (construction of offices/bathrooms, roof repairs, paint, siding repairs, new penetrations for doors, updates to electrical, insulation, and extension of water and sewer). 

I would advise finding an investor friendly realtor when you choose a market.

Helps you stand apart from similar 4 bedroom homes and if you choose to pursue a rent by the room strategy in can create additional cash flow.