I completely agree! Curb appeal is very important. A lot of buyers drive by before making an appointment to see the home. If they don't like how the home looks from the outside, they will never step inside. Since there are tenants there who might not take care of any landscaping, I would highly recommend the seller hire someone temporarily to maintain it while it is active. These are the little things that really matter when it comes to selling a home. It will pay off in the long run for the seller.