Hi Ron! Here is one option:
ATTENTION
Watch Your Step and Your Children
Homeowner NOT Liable for
Injuries or Accidents
ATENCIÓN (or PRECAUCIÓN)
Preste atención al caminar y cuide a sus niños (the English meaning of "watch your step" in this context is not clear.. could you specify if there are stairs, pans or any dangerous thing the person must pay attention to?)
El propietario NO ES responsable
por lesiones o accidentes
Hope this helps!
