Transfer of Property based on registered will

My Unlce (Moms Brother) has left a Registered Will to give his property in mangalore karnataka to my Mother. My Uncle had 10 Siblings and was unmarried bachelor. uncle passed away in 2020. we approached a local lawyer in Mangalore, who advised that we need to take consent to will from all 10 siblings and their spouse and children if not aliive. this is quite tedious process for us as most of them are settled abroad. the Lawayer seems like a fraud to us as he took around 20k from us to transfer the property withpout consent but hasnt done anything since 2 years. Also my Mom has 3 children and would like to gift the property to me..request your advise