You'll get a better response if you give some information and pad out a bare question e.g.
Why would he do this now? Why not leave it to you in his will?
How much is the property worth?
Is there any mortgage attaching?
Will there be any CGT liability for your father?
Will you have a CAT liability?
Both sides will need to be separately represented - who will pay the costs?
Are there other members of the family who may resent this transaction?
Have you contemplated taking serious accountancy/taxation advice?
mf