There are also many significant businesses coming to the area or expanding, including TSMC, Intel, Amazon, Apple, etc. 

Myth: Getting your license means you will start to get business and sell homes and earn commissionFact: Selling homes, lead funneling, closing deals, handling clients is hard work and you must bust you A** to find clients. 

There are a few ways to go about structuring the loan depending on how you plan on using the property and how much you intend to apply towards a down payment. 

When did the business start?

I don't know how long you've owned the duplex, and it will depend whether it's been on your most recent taxes or not been on taxes, but there should be income granted to offset your PITIA on this property as well. 

Things do cost different things depending on where you go (ie if you go to different PM, they charge different prices because some offer different services and different qualities of service-using your first example 5 Guys vs McD.   

. - These are the two channels where these companies will seek out listings for their housing requests.Longer term you should be networking with businesses in the area that are known for having housing needs for their employees.

As you mentioned, it's my business and I set the terms.

it will also depend on whether you get a GC or sub everything out. 

There are plenty of good books about note investing to explain the real estate and financial side of the business.