Impact of permitting illegal ADU/MIL Units on Resale price?

[Loren Buchanan]

Hey All-

I'm wondering if anyone has any insight on permitting an illegal ADU/MIL unit and its impact on the resale value of the home. Looking at a place that has a very nice ADU but needs some work in order to make it compliant (mainly a proper egress). I estimate between $6k to $10k in costs. So I am debating these options and its impact on re-selling the unit in the future:

1. Leave as is

2. Remove illegal kitchen

3. Permit it

Any insight would be appreciated!

-Loren