@Michael Goddard Moving forward add to your posts where you live and/or where you intend to invest.

Quote from @Allison Cutlip: My boyfriend and I are closing on our first property soon which is a duplex where we will be living in one side and renting out the other. 

I've been in Austin since 1992 and it's an awesome city to live and work.

What zoning code could I request a zoning variance or rezoning that would allow us to have the 2 livable units on parcel, one primary residence and one additional living unit (known currently as ADU)?

Our strategy has always been BRRRR, and we live in a historically cash-flow** market. 

The first house I bought, I lived there rent free, AND mortgage free, while renting rooms to other people.

We have a house in an opportunity zone in Texas that we bought in 2015, lived in for 3 years, and then made a rental in 2018.   

I really trusted my agent and knew several people who had invested in Reno so I took the leap after trying and failing for years to buy my own home in really high cost cities where I lived (NYC, DC, SF Bay area). 

Currently all I own is a 70-year old house that I live in--it is in good shape but needs updates.

I live in the Bronx, NY but my goal is to own an investment property in Philadelphia by the end of this year.