But we made our deals.Much like my fuller brush days  of offering a free gift of lanolin hand lotion to every door I knocked. 

If you don't disclose both loans to both lenders, you are committing fraud.That said, assuming that you disclose everything and are able to qualify for both loans, with Conventional financing for an investment property, you cannot get a gift (unlike a primary residence where you can). 

I was thinking a gift card for maybe $1000, is that a reasonable amount?

just deed them on to title they can payoff your loan and if buying cash can get remaking fund to you however really maybe even structure as a gift for that matter, and then you can do a quit claim and remove yourself.

Double loan meaning me having to do both a loan for myself to cover what the "gift loan" ends up not covering and paying back the "gift" loan.

If there are no liens on the house would it be possible for her to sell or have the mother sell or gift the house to the daughter. 

Dropping off Comparative Market Analyses for homeowners, dropping off gifts for past clients.

@Tony Wooldridge I was gifted the 3 day class for Christmas in order to attend it with a family member here in Seattle.

So its very difficult to find a gift my dad likes, but I hit pay dirt last year when I paid my parent's property taxes on a lot next to their house that my dad has used for his business.

That doesn't mean you need 20Save, in Canada the law is quite specific about prescribing limits on your creativity (particularly for residential properties): your downpayment must come from your own funds/equity or can be gifted to you.