If you are having problems with your rental that the property manager and the landlord have failed to adequately address over the years, you should call the local health department and building and permit department and have a representative for one of these entities inspect your unit and make a report based upon the findings.Assuming there is a potential health and/or safety issue regarding the rented unit, you will then have written documentation to submit to the property manager and the landlord establishing the scope and perhaps cause of the problem so that possibly it can be rectified in the near future.If there are written reports prepared by one or both of the suggested entities and the landlord and property manager do nothing to assist in resolving possible problems with the rental, you will need to consult with a landlord tenant attorney.Good luck.