1. Sure! However like her, the pokemon won't remember right away beyond a sense of kinship to their owner. Over time, both of them through memory regains (which happen at your own pace, no points needed) can connect two-and-two together.

2. Since the price scaling for the talking to animals is scaled on how WELL you can communicate with animals (getting general emotions vs full on conversation) rather than how many animals they can talk to- the price would be the same unfortunately!