@Mason Kimball, CPA Mason, Thank you. I live in NJ. Property is in FL (Property LLC) parent LLC is WY The articles for the property list the principal office as the property address. the mailing address is my virtual mailbox address. and also the address of the registered agent. The parent LLC has the address of the registered agent. the mailing address is the virtual mailbox address i have. the principal office address is also the virtual mailbox address. which LLC to i enter on the w9. the property LLC should be a disregarded entity with no tax return, so i assume i put the WY LLC since that is the partnership that will file an actual tax return. I definately don't want to put my personal address, but AI thinks I need to or risk issues with the bank. I couldn't have imagined how complicated filing out a W9 would be.