I don't know what the market is like in MN. Have you looked at 4 plexes? could you afford 20% down on a turn key 4-plex? Does it need to be turn-key? (do you have proper resources to do the work, or can you do it yourself if required?). I would not attempt to flip off the bat, if it goes bad you could set yourself back a long ways. Buy and Hold is a safer place. The downside, is that you are not always swimming in capital, your ship comes in a lot later. Sometimes you have to trade someone Cash Flow for cash in the form of a note (this can be tricky, but thanks to BP you might find someone).
If you have an Owner Occupied scenario (house hacking) like you referenced above, you do not need to stay in it forever. If you sold your current house, could you take the cash-out equity plus the 20k that you "have to play with", combine it, and buy a MF in a nicer neighborhood? If so, that might be the winning play. Try for a 3 or 4 if you can, the more units, the more base rents.
I ran into this spot. I wanted to get a 3 or 4 family, but didn't want to live in it. Banks don't like this scenario nearly as much, because THEIR bet on YOUR mortgage is in the hands of YOU being able to run a business well, which many people are not capable of.
That being said, many banks will consider lending for these types of transactions, but the standards are tougher to meet:
Typically 25% down
Typically you need like 700+ credit score
You need demonstrable experience (construction/landlording) of 2 years
Doesn't hurt to have a friend in the industry (maybe someone here on BP?)
Typically you will pay a higher interest rate (mine was 5.5% fixed over 10 years)
Based on your situation, I would look for a partner (maybe also here on BP), because I think that way you can: 1. Raise your capital base, 2. Find someone who has demonstrable experience.
Final piece of advice:
Residential mortgages end at 4 Units. If something is listed at 5+, it becomes MUCH tougher to finance, and often times a MUCH better deal (as there is less competition due to financing restrictions). If you can find a way to qualify (scenario above with 700+ credit, 25% down, Experience), often times you can come away with a pretty good deal.