In our games when you encounter another character you may decide to use an ability on him or attack….not both. My question is…can the Sorceress use her steal follower ability and they try to begile an object from that same character?

One or the other or third or fourth option in some cases.

For the Sorceress, she has four options (pick one):

#1: battle

#2: psychic combat

#3: beguile

#4: seduce a follower