That is easy. Do they cashflow from the start? Are they going to continue to cashflow in the next 2 years? The answer to the 2nd question means you need to know the job market in the area, the comparable rents, vacancy rates, etc. If it looks good then go for it.
Now, answering whether it cashflows requires some work on its own - I hope you know how to do that. All the best!
Jan 28, 2009