I want to know whether there any other legalities/documents I need to check before going for this property. Please clarify.
Besides Will, title documents, link documents, EC, tax receipts, mutation of revenue records, you need to obtain legal heirship certificate of the deceased to ascertain that if there are any other legal heirs or successors in interest to the deceased.
You may even issue a publication in the local newspaper in this regard, wait for 15 days to note if there are any rival claimants.
Above all you may obtain a legal opinion from a local lawyer before making a final decision.