I agree with Twinkiedoodle
If you have no harm/damages then you have nothing to sue for.
if the popcorn ceiling isn't causing problems then it isn't worth doing anything about. With lead and asbestos it is more likely to be harmful if tampered with such as removing it or if it is flaking. Often they say it is safer to just cover it over with something else than to remove it --like with siding.
Diseases from asbestos exposure take a long time to develop. Most cases of lung cancer or asbestosis in asbestos workers occur 15 or more years after initial exposure to asbestos. Tobacco smokers who have been exposed to asbestos have a "far greater-than-additive" risk for lung cancer than do nonsmokers who have been exposed, meaning the risk is greater than the individual risks from asbestos and smoking added together. The time between diagnosis of mesothelioma and the time of initial occupational exposure to asbestos commonly has been 30 years or more. Cases of mesotheliomas have been reported after household exposure of family members of asbestos workers and in individuals without occupational exposure who live close to asbestos mines.
ATSDR - Asbestos - Health Effects
Have your doctor check your lungs and see if there is any sign of harm.