W9 and W8ECI

[Avi Lah]

Hi I live outside US and own rentals in US. Currently all are under my name. I'm non resident, I don't work or live in US however, my girlfriend is in US, and I stay there a lot(over 183 days rule. but its not a problem cause my income outside US) The problem: The property management company in US refuse to take W8 or W8ECI only W9. Othewise they probably will not release the money. What do you think? I worry it will expose me to a request from IRS to be considered as US citizens and my income tax generated outside the US will also be taxed. I have an ITIN and i can complete W9 but somewhat concern.I will advice my cpa but what do you think? Are there any foreigner who met the same problem?