Probate Law South Carolina

[Block2]

I am the PR of my uncles estate. His deceased wife is a beneficiary of his estate. His wife has an intestate estate opened. I have information that the PR and beneficiaries of her estate are not legally related to her. The PR lied about her relationship to his wife on the initial court filings and on two subsequent answers under oath on affidavits filed in another lawsuit against the wifes estate. My uncle and his wife were two elderly vulnerable adults and I suspect wrongdoing. I also have proof that the beneficiaries have converted hundreds of thousands of dollars in money in the wifes estate to personal use without benefit of a court order. There is real estate in my uncles estate that should pass to his wifes estate, but I want to make sure that the rightful heirs are named in the wifes estate and the court is aware of the lies on the affidavits and the misappropriation of funds before the real estate is transferred.

As the PR of my uncles estate, do I have the right as an interested party to intervene in the wifes estate in the state of SC to file a lawsuit against the PR of that estate, to make sure that the rightful heirs are named and proven before the real estate from my uncles estate is transferred to the wifes estate and also putting the court on notice of the perjury and misappropriation of funds?

If so, are there any statutes under the Probate Court Laws in SC that someone can direct me too giving me that right or any case law to support it?

Thank you for your help!