UK citizen, living in the US, wanting to cash buy in the UK

[Alexander Williams]

My wife and I are contemplating buying a home for our parents who are in the UK and in their 70s but rent and the uncertainty of whether their rent will increase, their landlord will sell etc.. is starting to cause them significant concern. 

We can cash buy a small home for them.

Has anyone done this? i.e. bought a home in the UK, whilst living in the US.

If they want to pay rent what options exist?

Any guidance on tax implications here in the US?

Thanks