Is there any responsibility for the staircase congestion property?

Stair congestion property is responsible, but the main responsibility is the owner of the other party's sundries.

Article 83 of the Property Law: Owners shall abide by laws, regulations and management regulations. For acts that damage the legitimate rights and interests of others, such as dumping garbage at will, discharging pollutants or noise, raising animals illegally, building illegally, occupying passages, refusing to pay property fees, the owners' assembly and the owners' committee have the right to ask the actors to stop the infringement, eliminate the danger, remove the obstacles and compensate the losses in accordance with laws, regulations and management regulations. Owners who infringe upon their legitimate rights and interests may bring a lawsuit to the people's court according to law.