Hi
Thank you for your question.
Under normal circumstances, a Form 17 would be completed when Spouses/Civil Partners own a property in unequal shares, based on your question this would apply to your situation.
I have attached further guidance relating to transferring beneficial interest, in this case, rental income to another party.
Declare beneficial interests in joint property and income.
Found within PIM4702, additional information is given on rent from property outside of the UK:
PIM4702 - Rent from property outside the UK: Income Tax (IT)
I would advise that if completing the Form 17 that this only applies to UK property, so with your property outside of the UK, this would not apply.
Thank you.