It ends when they AND their stuff is removed to the level that allows you to begin the re-rental process. 

But if you have to jump through hoops or spend a significant amount of money to put it in might not be worth it. 

Hey Chris, a few thoughts here.Considering that office is not attached to the house, I wouldn’t add any footage to the total home square footage; however, you could advertise that office space and amount of footage and amenities in your remarks.If you’re a Realtor or are using one for the sale, your local MLS may have fields dedicated to additional footage for other buildings on the property, such as ADU’s.The other point is that typically, perhaps depending upon location, a space needs to have heating to count in the square footage, which this office doesn’t have if I understand correctly.Consider contacting an appraiser to inquire about how they would handle this space on an appraisal, or a Realtor.

Go to local real estate investing meetups at least monthly for six months and don't bring up the partnership until after three months of them.

Before you can tell, you need the answer to a lot of different questions and then know how to apply them:What is the remaining term of the assumable financing?

Depending on your market, you can look up sold properties on Zillow.

This means you’ll have to find a broker to sponsor your LLC brokerage.

Look up Vivian Yip.

We cater to us older folk that didn't grow up with all these subscriptions and when they go on vacation they want to press a button and tell the remote what channel they want😄 We have big smart TV's that they love and if inclined can use a subscription, but then they have to figure out how to sign out of them.

@Sino U. feel free to reach out with any questions.