Transferring property with many unknown heirs

[Kanchi Ji]

I am asking this for a friend:

Property X is under the name of husband (A) and wife (B) who passed away in 1960s and 1940s without any will. After the deaths, one (C) of the daughters started living there. After the daughter (C) passed away about 10 years ago, one (D) of the granddaughters changed the address to her address and started paying the real estate taxes about 10 years ago. The granddaughter's (D) mother (C) is the one who used to live there after the grandparents (A, B) passed away. The house has been abandoned since then and no one is living there. The granddaughter (D) wants to sell the property where her mother (C) used to live, but she (D) estimates that there are at least 30 other grandchildren from her deceased uncles and aunts. She (D) has been unable to locate them all for many years. She (D) does have contact information for a few cousins. She (D) is tired of keep paying the taxes and has been delinquent on taxes for the past two years.

What can be legally done to transfer the house under the granddaughter's name? No other relative has every come up to her (D) and claimed their right nor asked for their shares.

Please let me know if you need more information to answer the question.