Now they are moving out they give us a bag of mail. there is an expired check and a bill that went to collection.

Current lease term (expiration date, month-to-month)7.

In my experience if the contract is over there is nothing she can do, sometimes there is a thing called the holdover period where he may be required to pay her commission, if so then wait till it expires (I think avg is 60-90 days or something) and buy it from him then and you wont be liable for anything. 

Everyone signed off on the new lease and the old one expired? 

Most tenants current leases are about and expire and traffic tends to increase right around this time. 

If a Lis Pendens was filed before the moratorium, is that person eligible for forbearance, or are they 1st in line when the moratorium expires?

Even when you buy a new build with a 15 year absolute lease with 2x5 year options.. obviously the worst case scenario you can't sell it the lease expires and the tenant leaves and you have a dark property..

(Before ten years have expired, the judgment can be renewed (repeatedly).Assuming your tenant filled out a written application, and that application included an employer name and address, that would be the starting point.

I inherited these tenants and the expired lease they have is useless.

Again if its commercial property i.e office or retail bank will look at lease expiration schedules.