417 is not the same visa as a 457 and does not have the same conditions. The issue is if thid person will ever even make it to the BVA. A BVA for partner visa applicants will have nil conditions.
"Mandatory Visa conditions
Mandatory Condition 8107
This condition applies to all primary subclass 457 visa holders only. You must:
only work in your nominated occupation
start work within 90 days of arrival in Australia if you were outside Australia when your visa was granted, or within 90 days after your visa was granted if you were already in Australia at the time
only work for the sponsor, who nominated the position you are working in (if your sponsor is a standard business sponsor and is an Australian business, you can also work for an associated entity of the sponsor)
not cease employment with your approved sponsor for a period of more than 60 consecutive days - if your visa was granted on or after 19 November 2016
not cease employment with your approved sponsor for a period of more than 90 consecutive days - if your visa was granted before 19 November 2016
obtain any mandatory licence, registration or membership necessary to perform your occupation in Australia and comply with any provisions within 90 days:
after initial arrival in Australia on this visa
from date of visa grant if already in Australia
if your visa was granted on or after 1 December 2015 you must also:
not engage in work that is inconsistent with your licence, registration or membership
notify us in writing as soon as practicable if your application for the licence, registration or membership is refused
notify us in writing as soon as practicable if your licence, registration or membership ceases to be in force or is revoked or cancelled.
To notify us of registration, licence or membership issues you should send an email to:
[email protected].
You are considered to have ceased employment when either you or your employer notifies us of the date you stopped work.
If you stop working for your sponsor, you must do one of the following within 60 days:
find another employer to sponsor you and have them lodge a new nomination, which must be approved before you can start working for them
be granted a different visa
depart Australia.
If more than 60 consecutive days have passed since the date your sponsor advised us you would be ceasing employment on, you could be in breach of Condition 8107 and your visa could be cancelled.
If you abandon your employment, or are absent without leave, you could be considered to have ceased employment."
