How realistic is it to make $100,000 a month from apartment building investment?

[Mubasher Riaz]

so heres an interesting questions, how much investment is required from apartment building to make a solid $100,000 a month cash income. How many units am i looking at? The cap rate? Vacancy rate? How long before I cover my investment and start profiting? Thanks for any advise here....

[J Scott]

If you can generate 20% cash-on-cash return (which is probably on the high side of reasonable in this market), you would need a $6M cash investment to generate $1.2M per year (or $100K per month).

So, it's probably somewhere in the $6-10K range...