Take the Q16 to Murray street. Get of there. Start walking along Bayside Avenue to about 160st. You will see two real estate agencies owned by locals with local listings right along Bayside Avenue. Plus you will pass Bowne Park, which I totally love.
If you walk all along 29th to Bayside Lane and up to Francis Lewis, you will end at another locally owned Real Estate agency. All three could help you out, I am sure.