UNCLE RIP-OFF OUR ESTATE HEIR TO GRANDMOTHER ESTATE PLEASE HELP

MYmy uncle did not notify us that were heirs of estate for 18 months . we ask for paper trail of his spending. we received none. we live in ny and this estate is in nj. we need help as the home was just sold for $ 163.000 an my 3 siblings and I are only getting $ 542.00 each. My sister has 153 pages of paper trail we tried to get info and correspond with him..We had ny atty but he has no rights in nj... an example He emailed us that he rented house after grams death for 22,000 with 15,000 back rent still owed for rent but that is not added to paperwork he sent us...my gram had a reverse mortgage in place only 2 months before her death and yet he let the bills add up for 3 more years and then charge us for his work that he has not proved in writing.. My uncle is getting amost $60,000.00 and aunt is getting 28,000.00 when my mom their sister passed in 2008 to make my 3 siblings and I and heir .And no banking or rent or water or electric bills or work to home has been given to us