The estimate for the current (before virus) market (with clean title, of course ) was $18000.

We contacted family members who emptied and cleaned the apartment.

I stopped over today after cleaning up a rental , they set it up great , one in the back , and 2 on either side , picnic tables , christmas lights , fire pit , trash cans , lawn chairs  and a volleyball net .  

Also I have common areas cleaned weekly now should that be sufficient as far as "my part goes" or should I have them cleaned more now?

Sometimes my cleaning lady comes along, but that is another story.

I do not like showing prospective tenants a property until it has been vacated, touched up, and clean.

Very often I wont post the property until tenant is out and everything is clean and show ready.

If they move out and you discover the smell, charge them for the cleaning and deodorizing.

What is renovated recently or does it still have 1970's shag carpet?

If nothing else, the silver lining I see is some time to get caught up on things we normally don't have time for; workouts at home or in a park, spring cleaning, or learning something new like a skill or language.