1st Time Home Buyer or 1st Time Investment Property ?

[Mark Belenky]

Preamble: 

My girlfriend and I are currently living together in our first house hack and we're looking into what our next step in real estate investing should be.  She's never bought a primary home for herself so, she's eligible for the 1st Time Home Buyer incentives.  

The Question:

If my girl buys her first investment property can she use the 1st Time Home Buyers program on it and if not, can she still use the 1st Time Home Buyers Program for her first personal home purchase after she buys the investment property?