Those young professionals aren’t going to eat the paint - are they? If the house hasn’t been painted since 1979, paint it (aka “encapsulating,” in lead abatement circles). If this rental is like most and has been painted a million times since 1979 (and the paint is in good condition)
and there are no children under 6, forget about it!
This is a state issue. Some states will require abatement and won’t allow you access to the court system if you don’t have proper lead certificates. Others only require abatement if children under 6 will live in the unit. Some only require disclosure. There are a few that offer limited lead paint damages under some circumstances.
Don’t do anything unless you have to, but know what is required in your state. The time to learn is not after you have been sued.