Hello and thanks for using Just Answer.
My name is ***** ***** am happy to assist you with your enquiry.
Could you please just confirm that your Dad still has full mental capacity?
I look forward to hearing from you.
Thanks for your reply.
Well, there is no reason whatsoever stopping your Dad from making a Will and leaving his share to whoever he likes. The fact your Son is his attorney under the LPA is irrelevant.
Provided there is no question over your Dad's mental capacity, he can make a Will, leaving his half share of the proeprty to you and there is nothing your Son can do to stop this and nor could your Son contest the Will whenever anything happens to your Dad.
I hope this assists you and sets out the legal position.