Answer: Seek an involuntary inactive license.
Step-by-step explanation:
You are indeed right that she should seek an Involuntary Inactive license which is shows that she is not practicing and therefore has not met the requirements needed for her to continue practicing real estate work.
She might be ready to renew her license but the requirements are such that she would have to do some real estate work. If and ever she is willing to come back to real estate, she can then renew her license, pay the fee and meet other requirements.