I don't have an answer for this either; except the best person to talk with would be a CPA that specializes in real estate.

Hence, to answer the "trend" question, I see a large number of investor purchases becoming flips. https://www.americanfinancing.net/mortgage-calculators/amort...

Alex,If you are earning W2 income it's possible to get an approval but in order to offer an exact answer the income and DTI would have to be calculated. 

It comes down to working with a good lender who can both originate the loan and administer the construction draws. 

If you don't know the answers to those questions, you need to better understand your market.

All original tenants were long term low rent tenants.

@Gluterie MarasiganThe first step to answer your question would be to connect with investor-friendly lenders that can help you with your desire to house hack.

Quote from @Robert Phillips: If the problem originates in your unit, then you should pay for everything, including the repairs for the unit below.

Well this company has been around for 10+ years which a is a good sign and they are willing to take care of maintenance of the property but I am not getting anything extra in terms of higher monthly rent then what I was originally asking for normal tenants. 

Originally posted by @Chris Grenzig:I have a 16 unit I'm renovating and looking at installing vinyl plank definitely in the downstairs units, but unsure about upstairs units due to noise.