If i purchase a home in my state from someone in another state,how do i find a lawyer to solve a problem concerning the sale/sell

You don't give a clue as to what the "problem" is.  But since the property is in your state, you will need the help of a lawyer local to the property.  You should find one and ask for his assistance in the closing and with regard to any associated issues.  Just any lawyer may not be competent to handle such matters.  Be sure your lawyer is experienced in the handling of title and property closings.  It will be up to him to deal with the out-of-state seller and the seller's lawyer.  The laws of your state will govern any issues that relate to the real property in question.  Finding a good lawyer should not be difficult.  It is best to NOT go to the yellow pages.  find a friend, relative or someone who can recommend a good lawyer.  Or, go to the internet and look for real estate lawyer in your area.