In addition, those rentals were with 10 y.fixed, so cashflowed minimally.

My attorney has just confirmed only the small liens will carry over which is minimal compared to property value.

Thinking what is the catch, a good way to diversify and minimize risk over owning individual units?

That is especially important here, because it sounds like you are buying from a landlord who did minimal maintenance and upgrading over the years.

I believe it's wise to minimize that chance for them.

Inside looks good, minimal repairs and RE agent estimates rent a little higher.

I try to fix HVAC problems in 24 - 48 hours so they can have a comfortable home at minimal extra cost to me.

Many of my clients are 1 year out of med school and can buy a $1.3M home due to their high income and minimal down payment requirements.

And I work hard for owners/investors to cash flow their properties and minimize expenses as a PM. 

Pursue your dreams whatever that may be and if college is truly one of them go for it but at the same time remember to do so through scholarships or any other ways to minimize your costs so that the money you are not spending on books, tuition, or kegs can go towards your real estate portfolio.