Acquisition Indebtedness for Mortgage Cash-out

[Daniel Umpa]

I've recently purchased a rental property using cash, but planned a mortgage cash-out to roll into a second investment. After reading about the 90 day rule (see below link) for acquisition indebtedness vs home equity indebtedness, I'm still uncertain if the cash-out mortgage interest on investment properties count towards the IRS allowable mortgage interest deductions . The only information I could find discussed primary or vacation properties. Could someone more qualified answer what IRS guidelines apply?

http://www.cmpsinstitute.org/pdfgen/260/2/32300/1