I would also speak with a knowledgeable real estate agent in your market and ask them what repairs they recommend and what the after repair value will likely be when finished. 

I would try to find people who are in the position you want to be, try to provide them some type of value, and ask how they did it. 

If it's being valued using comps (since they are 1-4 units) and not using NOI and cap rate like commercial properties, the return might not be there at the exit. 

That seems to be the main place people get value out of DSCR is if they cannot qualify for conventional financing. 

I believe that this is due to (finally) rising interest rates deflating asset values, which is highly correlated to the exponential increases in income for top earners like CEOs, executives, money managers, RE investors, and Private Equity Groups.To me, the only logical stance is "rational optimism" (I heard this term from Morgan Housel).

However from my observations the squatter occupied properties tend to be in lower barrier markets and I wouldn't personally want to spend my time and effort trying to create value in such neighborhoods.

100% do the queen . it will add value to your unit and increase traffic.

Unit A is about 100 years old and Unit B is almost completely new.Pros:-The duplex is in a very desirable neighborhood with home value appreciation year over year at about 50+%-Rent is also in high demand within this area-Cash flows well even with high interest rates and increasing property taxes-Home is price below average cost per sq ft-The house has been renovated and some parts of it has been remodeledCons:-All issues are with Unit A, the 100 year old unit.

What that usually does is reduce the value of the home because nothing is done to code or correctly, even by people who think they are handy.

How did you add value to the deal?