I own a property in CA. I have tenants and recently placed the property on the market. The tenants want out of the lease now. I have said no but offered $100 off the monthly rent while the house is on the market and the realtor has promised to be extremely communicative and respectful, giving more than 24 hours notice on showings. They did not accept the discounted rent, and now will not let repair people enter to take care of things they have made complaints about. They are being very hateful and uncooperative and demanding out of the lease. What are my obligations?