form to include with AP1

I am the executor to my sisters estate and in the process of transferrng/assent property to beneficiaries, what docs would I need to include, other than the Grant of Probate.  

also 

as an executor do I need to complete a iD1 identity check

thankyou

Tina - use our online assisted guidance to link to the firms and more needed depending on the actual circusmtances 
HMLR Guide: Start - External  · HM Land Registry
Yes, you do need your identity verified as the executor