Eviction Lawyer Recommendation

Hello, can someone recommend a lawyer that deals with evictions. My tenants lease has expired and they refused to sign a lease renewal or a lease extension at the same rent. They also will not give us any indication as to when they will move out and have employed a very nasty lawyer. The situation is tricky because the apartment is for sale and we are trying to not make things any nastier that it needs to be so that our broker can show the apartment to interested parties. This is not a rent controlled apartment, but the tenants are elderly and one of them is disabled. All advice, and suggestions for lawyers are welcome.