2007 condo,买价$12,000, 装修2000, 租金600/month,HOA 185/month,Tax 45/month. 从银行贷出9万(line of credit),interested $225/month。
贷出的9万,又买了三个condo,positive cashflow 大概 1200/month。 what is my return, what my npv at 2012.