In Indy, it is not uncommon to see a duplex investment produce a monthly return of 2% or more (especially if you have a contractor lined up that will enable you to purchase a fixer in an appreciating area).

@Mark Beekman this isn't uncommon at all. 

Driving around, it is still pretty rough through there (murders, shootings, and drug deals are not uncommon).  

Hi there - I'm currently analyzing a 4 family and each tenant is on a month-to-month (not uncommon in my area, following the initial 1-year lease term).

@Brandon Turner  Its not uncommon to get them as part of a park deal.  

It is not uncommon for old farm houses in the Midwest to rent for under $300/mo.

It's important to keep in mind that we're talking about averages, and not about the highest and lowest sales in an area -- it's not uncommon that the lowest price house will sell for less than 50% of what the most expensive similar house will sell for, but if the averages are at 50%, that's a very good sign.

In my opinion, an individual investor in parks can't justify a 5-7% ROI, although it's not uncommon to see.

Losing money when you first start out investing is unfortunately not uncommon. 

It is also somewhat uncommon to have a HELOC in first position.