In California where I'm located asbestos containg material in a residence is regulated by a few different agencies however it is generally excepted that the asbestos material is not dangerous unless it becomes fryable. Painting is excepted as a method of encapsulation however if there is ever a need to disturb the material for repair or remodle the material must be abated by a contractor licensed to abate if the area exceeds a specific amount determined by the local or state agencies. Most residences in our area built before 1980 contain some asbestos materials. Every now and again we find asbestos in homes built after 1980 and it is believed that the materials used were out of stock produced before asbestos was outlawed. I cannot comment on what a prospective buyer would consider on the purchase of your home but it should not be an issue. Asbestos is common in plaster, stucco and drywall materials as well as many other materials. If you have any doubts contact a professional asbestos consultant. He/She can advise you on local regulations.