British Columbia Law in regard to a power of attorney/turned executor who has stolen large amounts from estate?

My uncl T ped away a yr ago. Another Uncl R became power of attorney, then executor when my uncl T psd away. Uncl T's estate was estmtd @ one time to be valued at betwn 1 and 2 mill. Uncle T (supposedly had Alzheimers) for the last 5 years,and Uncl R moved Uncl T to a remote island where we (the rest of his family) could not be too involved in his life.Uncl R has never worked a day in his life, and his daughter (1 of uncl t's caretakers T) is a drug addict. Tho myself, and sis were beneficiaries of the estate, we were remvd in the lst few yrs unbeknownst to us, and my mother & Uncle r were accdng to the will to share what was left of the estate. Well, my mother just received a form from the 2nd lawyer Uncle r used (he supposedly fired the first because he screwed up the paper work...somehow I doubt this) to sign offering her what was left of the estate $77,000. Uncle T also had a condo which was paid off years ago, which was sold approx 1 year which was not mentioned in the ets. We think the money was pocketed. What action can be taken...my mtr is very frail, but as an ex beneficiary, can my sis and I proceed to have uncl R charged for embezzling without having to put my mother thru this? Also, we will see a lawyer, but wonder if it will be futile. Uncle R did the same thing to my grndmtr too and i would certainly love to face the consequences for elder abuse. In regards to the house sale, I wonder if a case could be made that Uncl T was made to make decisions while under duress. The last time I saw him, he told myself and other onlookers that Uncle R was forcing him to do things he did not want to do. (I would ume he meant chaning wills,etc.) Question. I wonder if the first lawyer is allowed to give us any information. Can old bank records be opened if a lawyer gets involved? Do we have a case? If not I will tell this story to all who know the crooked uncle R and take pleasure in it. :)