B) you would get significantly higher rent for an entire unit than just a single room in your house.

The only things I would buy in flood zones are units that are generally flood-proofed, meaning the ground level is not residential.

If you are in a condo building look at Section 718.110(13), Florida Statutes, provides as follows: “An amendment prohibiting unit owners from renting their units or altering the duration of the rental term or specifying or limiting the number of times unit owners are entitled to rent their units during a specified period applies only to unit owners who consent to the amendment and unit owners who acquire title to their units after the effective date of that amendment.”

If you can house hack, you could buy a 2 to 4 unit, live in one of the units and rent out the others.

Is it better to invest in one 3-4 unit multi family first or 2-3 cheaper single family homes? 

If you want to value add you are better off with a structurally sound unit that is priced low and you can rebuild from the ground up front loading the risk.  

Focus on being sure they feel safe in the unit and in the neighborhood.

At that point you could either flip or hold the units as rentals depending on your goals. 

I received a quote from a broke that mentioned it will be ~$30k/unit (seems high), which should include adding washer and dryer units to the apartment. 

Good evening all.Recently purchased a multi-unit in Hastings, MN and inherited all 12 tenants.