In any contract you don't typically need a clause saying what you CAN do, its assumed you can do anything legally allowed as an owner including sell.

Double check your lease, all the legalities and still check with the landlord....

I am not sure of the legality associated with this and the issues of going from 4 units(residential) to 5 units (commercial) even if one unit will only be owner occupied.

It is an expense, but they keep it all legal and compliant.

It's basically a legal 2-unit that can cashflow $900/month.

If you need financial help, ask under the "Finance, Tax, and Legal" forum.

Or really they were ALL pre foreclosures when it was legal to do this in OR and WA laws changed in 08.

Honestly, I would not sign any lease until you positively close and legally own the property.

Namely, that if a tenant (in this case accompanied by a whole family) ends up stop paying rent and I would be on the hook for both covering the mortgage and dealing with open ended legal costs and time.

I think there is value in ADU as long as it is legally done and can be legally rented.On the sale side a benefit can always be an in law suite.