How do I reset an Admin Password in Accounts Hosted?

You dont. Tech support need to do it

Lachlan.  The administrator is the only one who can re-set the password.  If nobody knows what the administrator password is, then you will have not other option that to have Reckon do a password removal which could cost you a couple of hundred dollars.  This matter has been raised a couple ot times within the past couple of months, one of which was only a couple of weeks ago, from memory.  Have you done a search on this site for this issue?

You can refer to the following for some guidance:
https://community.reckon.com/reckon/topics/how-to-remove-or-reset-an-unknown-admin-user-password-in-...

John L G