If each property costs $200,000 and your only acquisition cost is a 25% down payment, you will need $850,000 (17 × $200,000 × 25%) in savings, an almost impossible amount for most people.

People will not like them because they are harder to open. 

Most people think real estate investing requires huge capital, perfect credit, or bank loans—but that’s not always true.

Unless it's cost-prohibitive, I'd remove it for the same reasons people have stated: 1.

There's also a lot of mid-term demand in this area from people moving down and waiting on their home to be finished.

In my experience, most properties that go to auction end up overpriced so I'd be prepared to attend a LOT in order to get something that worked on paper.When I attended my first market auction with an experienced agent the advice he gave me was to figure out my maximum beforehand and stick to it (Seems obvious but people get caught up in winning).

People weren't renting properties as quickly, and there was an increase in vacancy.

For most people a house hack is a great start. 

At the end of the day we can screen our tenants all we want, but cannot control what people do.  

Lower land and building costs mean higher returns on investment, and there’s a quiet but consistent need for quality housing as remote work and cost-of-living shifts draw people away from cities.