I have recently discovered a love for Astronomy and science.

There is no right or wrong, this is not an exact science.

As the others stated, rehabbing a home for rental service isn't rocket science.

What's worse is if they decide your planned use isn't allowed.Zoning is not rocket science.

I’m currently a teacher as well, but my brother is a recent UD grad In the math/computer scIences dept.

Not rocket science .

Then look at your time horizon for wanting out of a 2-4 unit and multiply... i.e. it's $1000/month to rent a place, or it's $500/month after you rent out the other units and you really want to be out of the 2-4 unit neighborhood in 3 years... 3 years (your time horizon) * $500 (the difference in renting vs owning) * 12 (since it's monthly) = $18,000... that means it's $18k better to buy the place.The numbers are all fictional, but the process is not.

Big businesses like Google, Uber, Apple, Facebook and Autodesk..even ARGO AI from Ford..have paved the way for Pittsburgh's tech makeover fueled by CMU's robotic, sciences and technological innovations.

I know people who studied math that got into data science, or financialModeling.

I know that won't change in my lifetime, but I am going to live to be 300 years old, either through science, or through legacy.