For example, a large family vacation home owned by a doctor or executive for the past 20 years that could use some sprucing up. 

Newbie question, Looking for some advice on getting my deals funded by high income, under invested individuals like doctors and lawyers.

The only people ive seen investing for appreciation have been my doctor friends, buying new $700k condos in the hot areas.

I did get qualified in my own with Bank of America for their doctor loan but only on a single family home and not a duplex.

They will do a real estate deal for a good customer that has other business with them (like a doctor who has their practice banking with them and wants to buy a rental home) or a larger developer that's building a development in the area, but they are focused on owner-occupied commercial real estate and loans for operating businesses. 

With no jobs, stores, doctor's offices, or anything else, there is no reason for anyone to remain and rent your property.

You are probably not a doctor, so that is just an analogy.

As far as the owner he’s a family member, Doctor who’s doing business at both locations.

It can be harder to assess the demand for bigger units but in large cities there’s always need for 3+ BR homes for families relocating or displaced by insurance companies. 3+ bedrooms can also work for medical professionals like nurses or even doctors traveling in groups or with their families.

He was a doctor/real estate investor/developer back in the 60's and 70's.