Have managed to do this about 4 years ago. Similar situation in that parent owned the house wanted to give it to me and hubbie but was facing a large CGT bill. Bank agreed to a mortgage in 3 names even though our names weren't on the deeds. Parent wasn't covered by life assurance so basically if they died we would still be liable for the mortgage. Only our salaries were taken into account for it.
Needless to say solicitor wasn't happy as she was right in advising myself and hubbie that should parent decide to will the house to someone else we
would end up paying a mortage on something we had no chance of owning.
We were happy enough with our situation to risk this, and when parent died about 2 years later the house "thankfully" was left to us.
Had long discussions with Revenue as it was a relatively unique situation in that parent inherited the house 30 odd years ago and was facing a substantial CGT bill in order to gift it to me. It was more this tax rather then CAT that was causing our problems.
Definitely worth talking to your solicitor, bank and revenue about it. BUt you would want to be on very good terms with your parents!