Baskets galore! Bring on all the baskets and have your residents do a traditional Easter Egg Hunt, either indoors or outdoors.
You can keep it traditional and place little chocolate eggs around your community or shake things up by putting larger plastic eggs filled with special items or prizes.
For your residents who have more limited mobility, you can set up a virtual egg hunt, where they can try to locate eggs hidden in a picture on a large screen. Check out YouTube for some ideas.