To continue using an estate beyond its 10-day trial period (and access its discount coupons), you must purchase an EstateExec license for the estate.
To license an estate:
If you are an authorized user for an organization that has purchased a volume license, once you click the "License Now" button you will be given the choice to assign a license from your company's pool of pre-purchased licenses.
To obtain permission to assign company licenses:
A license for an EstateExec estate costs $99, and is good for an initial 5-year term. Since most estates are settled within 6-18 months, this should be plenty of time for the vast majority of executors. If you grant other users the right to access the estate, they will not have to pay a separate license fee to access the estate: the license is perestate, not per user.