In 2023 I did not rent the units out or advertise them.

2) Could your money make more than the interest rate for the home somewhere else?

I am pretty sure they don't have a buyer higher than my price because I saw them just advertise it again at my price minus 5k.

And then do everything yourself: maintenance, advertising, showing, developing your lease etc. 

Many people don't make a profit, obviously odds of success get better with experience/good team, etc.consider until you have more time to commit to instead look at buying publicly traded equity REITs, not mortgage REITS, they are trickyget subscription to Seeking Alpha and follow Brad Thomas, Jussi Askola and many others research/writing to start withREITS have beaten the SP500 last 50 yrs, by a lot, 13% to 11% just in last 20 yrs too, and they have taken a temporary beating due to sudden rise in 10 yr rates and hence CAP rates, but their underlying rent roles have only gone up.

Or a seller finance where you are playing a much lower rate.

I have done my research online and it doesn't seem like the strongest market (population is stagnant, crime rate is not the best, job industry isn't very strong) but I know personal accounts are important as well. 

I understand the state of interest rates is giving pause to MANY would be buyers, but someone will ALWAYS need a home right?

Construction cost is more restrictive on our opportunities than interest rates. 

Now if interest rates climb to 8 to 9 % then a mortgage lender has a reason to call the loan in order to increase profits.