Hello, I am a scolicitor with 20 years experience. I will try to help you with this.
Can yo tell me a little more please who does she want it paid to?
It would be paid to me
OK I think you need to be careful here. You should be asking what might this look like viewed from the future by a sceptical person. I will give you a full answer later when I have had a chance to think it over but my initial reaction is that you should pay her the money and then she can re-imburse you.
OK. Look forward to hearing from you later. My main issue it not what it looks but whether it is illegal or inconsistent with my duty as executor.
If there is something clear and unambiguous in writing from your sister saying that she wants you to pay a specific sum of money to you then you can do so. I do think it is better to paying it to her and she then pays it to you to avoid any risk of an allegation of breach of trust/duress in future either from your sister, her partner or children.