talk to someone from your local fire dept. and tell them everything. They will come out look at it and tell you what to and tell the landlord what he needs to do or he will most likely have his propert condemned til everything is fix.
You can only legally withhold rent 14 days after you have you have given your landlord written notice naming all the failures to maintain the property. If your landlord within 14 days does remedy the situation or makes a good effort at repair, then you can not legally withhold rent.
Below are links to landlord tenant rights and responsibilities in Nevada. And a link to the Department of Housing and Urban Development. This department is the proper place to take complaints about landlords and property.