How much cashflow can you receive monthly purchasing a $100K SFH, Duplex, or Triplex?

[Sage Jankowitz]

From what I've read on the forums, it sounds like anything over $100 / month per a unit is a solid cashflow, but out of curiosity how would you classify more or less than $100/monthly per a unit?

For example, for a duplex:

Would most of you consider $50-$75 / unit monthly bad?

What about $75-$125?

Is it realistic to expect $125-$200+ a month per a unit when your property is in the ~$100K range? Would love to get an idea as to what you can realistically find if you were to do some serious bargain hunting.

What is the most anyone here has made in terms of cashflow / month on a single property for $100K or under?