It revolves around the point of when do you inherit property is it the date of death, the date of the grant of probate or the date that agreement is reached or it’s transferred to you.
For the purposes of CAT it’s the date of the grant of probate except where you are in occupation of the property, when it’s the date of death. So she is arguing that on the date of her fathers death when she inherited the house she did not have an interest in another residential property.
The Revenue disagree that she in fact she inherited the other residential property on his death.
Not too sure what the answer is. I’d imagine that if herself and her brother inherited 1/2 the estate on his death then she has an interest in residential property. The fact that they decided to carve it up later is a bit irrelevant.