My father in law passed away in 2009 in Pennsylvania, he owned 3 houses, he told me before he died that in his will he left a house in New York to my son, his surviving wife and children don't want me too see this and are refusing to recognize his wishes, how can I get a copy it.

Contact the probate division of the court in the county where he lived and find out if the his estate was ever probated.

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While pointers can be helpful, ultimately the number one lesson in any legal action is: don't take legal advice from books, family, friends, co-workers, police officers, grocery clerks, web sites, or people on legal message boards. The only person who can give YOU legal advice is YOUR attorney.

http://www.aardvarc.org

I agree with aardvarc. Have you browsed through the information in LawInfo's Free Legal Resource Center to learn more about your issue yet? See: http://www.lawinfo.com/consumer.html and http://resources.lawinfo.com/en/index.html. You can certainly try to speak to a lawyer to determine what legal options may be available. In the meantime, you may be able to learn more on your own. Search the "Free Legal Resources" tab, or browse the Consumer Resources. Good luck.