Home Buyers Plan Eligibility Girlfriend

Great question, this can get tricky, I was in a similar situation but was engaged at the time and had a bigger window to work with, (I bought and sold prior to getting married). From what my lawyer & 2 accountants both advised me, the short of it is if her name is on the property if purchased as investment or you 2 decide to live there may be considered as common law, no in either case she wouldn't be eligible for HBP. Even if she isn't occupying condo, and the 2 of you or she decides to purchase something later as she is no longer a 1st time home buyer. However, the definition has changed recently and the contribution amounts have increased. In 2018/19 it rules were amended to make it easier for people who have gone thru separations, divorces & life changes to re-qualify for HBP.

Can you not shift funds in excess of HBP you were planning for down payment and use it as a contribution her HBP?, or can she borrow to make a contribution to her HBP or take a RSP loan?
The rules have changed a bit from when I last did it, I believe she would only be eligible again after 5 yrs after no longer being a home owner and your original HBP was repaid.
Are you planning on marrying her as lots of risks involved? and can you qualify on your own. You may want to consult a tax lawyer and accountant to see if there is anyway she could be eligible down the road.

Thanks Neovingian - one route we are thinking is I take title of the property and mortgage (and off paper showing a 50/50 split?). I will need to speak with a lawyer if something like this is possible.