Remove spots/smudges on painted walls

Greetings- We will be moving out of our rental home soon and are wondering what the best methods are for cleaning the painted walls of our home. We've noticed some spots/smudges on the painted walls particularly near the sink areas and behind the stove top. Is there a product made specifically for removing these types of spots on painted walls? Just trying to be sure we do our best before the move-out inspection. Any idea how much per meter will be assessed if it is determined that the walls need to be repainted?