Do you know if the home is a short sale? If so, then you need to try to call the bank. It's really not the realtor's responsibility to cut the grass, that is the job of the owner and/or the mortgage company that holds the loan. Banks generally have property maintenance companies that do this work for them but they are very slow. Call the realtor again and ask her to please have the owner take care of this, let her know that, if something is not done by a certain date, you will have no alternative but to call the city. See if that works first.