Assuming I got 300K house, even the cash flow not that good, but still can cover interest+tax+HOA+what ever, then after 30 years:
1. The house should be double the price to 600K
2. All paid off by the rent money
3. I will have monthly small cash flow
if i have 5 houses like this, it will be 3M in total expected value when I retire.
This will be a good part of my retirement portfolio (1/3).
Of course, you have to deal with the headache of being landlord.
Anything worng with this projection?