Thank you to everyone who replied! In answer to some of your questions:
We're not weaning completely off of milk because she's an erratic eater, but she LOVES milk. We always do solids before milk, but sometimes she just won't eat. We're going to stick with goat milk until age 2, and then reevaluate.
This goat milk is pasteurized, not raw. It's whole fat and has Vit D3 added.
It's not that I feel like I HAVE to wean, it's that I'm pumping 5x/day for 25min/ea to keep up, and I just can't continue. I feel victorious crawling over the 1 year finish line... there's no way I can get back up and run the whole race again! FYI, she dropped the breast cold turkey at 8mo, and never looked back.
DD outgrew her cow's milk sensitivity, which was really very slight. This choice is about placating her grandfather, who is still married to some of the old wisdom. I recently sent her grandparents an email describing the benefits of goat milk over cow, how we would address the deficiencies, the timeline for slowly making the transition, and they're happier. They see the babies daily (first grandchildren--nephew is 3wks younger than DD and we share a nanny), so I'm sure Grandpa feels a great sense of responsibility for them, and his reaction may have been more the shock of not being consulted.
I'll bring up goat milk with her doctor at the 12mo appt in a couple weeks, and see what she says about folate/folic acid.