Here is what I found: According to state laws (Civil Code § 1941.1 and § 1941.3), at minimum every rental must have:-effective waterproofing and weather protection of roof and exterior walls, including unbroken windows and doors-functioning plumbing, heating, and electrical facilities, including hot and cold running water and a working toilet and kitchen sink-clean and sanitary building and grounds (that is, free of debris, filth, rubbish, garbage, rodents, and vermin), with adequate trash receptacles-well-maintained floors, stairways, and railings-deadbolt locks on certain doors and windows-no lead paint hazards, and-no nuisances, a catchall provision referring to something that is dangerous to human life, detrimental to health, or morally offensive and obnoxious, such as allowing drug dealing on the premises.If I were you I would take LOTS of pictures and document everything.

So many posts (and so much rubbish as well).

@Andrew S.Sounds like rubbish to me. 

Rubbish.

When we plan on major work after move out, we advise the tenant in writing they only need to leave unit free of all personal property and rubbish, and broom clean.

Dumpster another story, you said you were about to take care of the rubbish. 

All of their food waste, and typical household rubbish had been dumped down there for years.

Rubbish IMO.

When Zillow first came out I thought it was rubbish.

(A) A landlord who is a party to a rental agreement shall do all of the following:(1) Comply with the requirements of all applicable building, housing, health, and safety codes that materially affect health and safety;(2) Make all repairs and do whatever is reasonably necessary to put and keep the premises in a fit and habitable condition;(3) Keep all common areas of the premises in a safe and sanitary condition;(4) Maintain in good and safe working order and condition all electrical, plumbing, sanitary, heating, ventilating, and air conditioning fixtures and appliances, and elevators, supplied or required to be supplied by the landlord;(5) When the landlord is a party to any rental agreements that cover four or more dwelling units in the same structure, provide and maintain appropriate receptacles for the removal of ashes, garbage, rubbish, and other waste incidental to the occupancy of a dwelling unit, and arrange for their removal;(6) Supply running water, reasonable amounts of hot water, and reasonable heat at all times, except where the building that includes the dwelling unit is not required by law to be equipped for that purpose, or the dwelling unit is so constructed that heat or hot water is generated by an installation within the exclusive control of the tenant and supplied by a direct public utility connection;(7) Not abuse the right of access conferred by division (B) of section 5321.05 of the Revised Code;(8) Except in the case of emergency or if it is impracticable to do so, give the tenant reasonable notice of the landlord's intent to enter and enter only at reasonable times.