@Sirsmokes I think you should read this article. Google leafly marijuana-and-epilepsy-seizure-treatment
That should get you to a Jan 2017 article.
I just saw your edit.
CBD is what everyone recommends for Epilepsy. Especially for children. I started smoking pot when I was 14, but that was a different world… I can’t recommend that to you for your daughter. (using THC) Though if the CBD to THC content is two to one or better then the THC effects would be almost nullified.
The trouble with growing MJ strains with high CBD ratings is this. Because of the different prototypes possible if you grew four plants it would be very likely that all four would be a different phenotype. One would be high in CBD and low in THC. One would be High in THC and low in CBD a third could be CBD dominant and the fourth could be THC dominant. That means you would have to send them out for testing before you could use them.
So the good news is there is much that you can do for yourself, but CBD is probably the best recourse for you.
I found a pretty good internet source for CBD. The website is in the standard format
pure CBD vapors (dot) com
See if buying some of the bulk products might not be a little easier on the wallet? I want to say they give a pretty good first time customer discount as well. and if you joining the mailing list or follow them on fb etc.