However, I'm not sure if I can withhold for the intensive cleaning needed because of the smoke/dog smell, broken window, carpet/sub floor cleaning, and backyard rubbish.

I think my only option is to wait until the tenants leave, have it cleaned and then show it. 

If you're looking for the turn-key deal, talking to a local pro about the living condition elements you find most important will allow them to have a better shot of matching you to a clean and ready duplex for sale.

I hope the other property owners are willing to work with you in cleaning up the neighborhood.

I kept the old carpet as clean as possible with my commercial carpet cleaner, and it does not smell in the room.

In my contract with the foundation repair company, they are not reliable for issues that rise for sewer lines, but the contract does not say so for clean water line. 

I’ve seen single family home operators offer everything from landscaping and house cleaning for just a flat monthly fee.... that way the tenant has a hassle free experience.

We are at a place where the efficiency is complete (touchup clean-up, photos, listing, etc. to take place this weekend), but had our contractor over this morning to let us know the windows will be ready to be installed in 4-6 weeks. 

When it flooded a year ago, it took us over 30 hours of cleaning to get it to a functional cleanliness level where we could use the basement again.

The short answer is to take over the loan and payments, cash them out, give them a "reasonable" amount of time to move, offer to do the clean up for them and look for rehab money from a private investor.