Apparently this is an issue that other investors have faced as well, because it requires a bank manager to do a minor workaround with a field entry in the system in order to make it work. 

Markets there are growing rapidly while still offering competitive entry points for solid passive income opportunities.Hope this helps, and best of luck with your investing journey!

However, its downfall (and really what makes it so easy) is that it is a single-entry system. 

I am in Madison, but set up a search in Sheboygan and Port Washington as we have some family in that area who thought could keep an eye on things and the entry prices are less (in Dane County the median MLS 4-unit sale this year is $603k with 31 sales and for Sheboygan Co. this year only saw 4 sales of 4-units noted, but a median price of $252k . 

By leveraging real estate in areas with lower entry points and higher returns, you can grow your wealth more effectively without the heavy financial burden of a luxury home.

If you choose an area or decide to work with people who will take up more time due to the low cost of entry, you may end up paying more in the long run. 

If you can buy something habitable, and rehab it over time while you live there, that could be a home run of an investment when you look at your return on investment, especially if you house hack.Sure you may leave cash in the deal, but if you buy right, it could still be an extremely profitable and low-barrier to entry way to get into real estate.

Quote from @Stuart Udis: The natural buyer of the entry level SF homes have limited cash and therefore the biggest obstacle they face is funds to close.

Were the entry and exit points contained within an overall bull market?

This way your cost of entry would likely be under $20,000 and you’d have 1-3 rents to offset your expenses and mortgage.