We don't have a neighborhood listserv (/shakes fist at communication committee), but I may email the property manager to see if she will send out an email.
I have the groundskeeper, his assistant, and several neighbors alerted. She's never left the house before, and it rained last night, perhaps erasing any scent trail.
J is bringing home a rotisserie chicken in the hopes it will lure her near. Any food I leave out will be eaten by the squirrels and chipmunks and further lure rats.