Hi
As your father is not UK resident, he has no Capital Gains tax or Inheritance Tax liabilities in the UK, provided the property is not located in the UK.
As you will be the owner of a second property, you should confirm in writing which of the two or more properties you own, is the one you consider to be your main residence for Capital Gains tax purposes.
If you don't do this within 2 years, HMRC will determine your main residence, based on the facts of the case.
Please have a look at
Tax when you sell your home.
Thank you