Is there any quick easy process I can use to repair/seal these hardwood floors to make them look a little nicer while also getting rid of any leftover odors from the previous owners?

Do a search (search bar is in the top right corner) for smoke smell or odor and you'll find a number of threads with all kinds of advice.

i do believe that if you go to a pet store they sell some stuff that gets rid of the odor...

Those carpets and pads must be pulled and the odors removed before new pads and carpets go in.And no Virginia, pet deposits will not take care of this, they can contribute but these people should talk first before the landlord does his checkout and try to come to some agreement to ease his pain and in turn theirs.Talk first, do not make them chase you or any chances of a reasonable settlement go out the window, or they would for me.

Either a water and vinegar solution or you can use a product called Nature's Miracle which can kill urine odor.

However, by crying "Foul!"

I imagine some of those products mentioned on another thread some time ago would help to clean the living space and yard, but I wonder if they would eliminate all the odors.

any recommendation for Realtor that won't foul up the deal?

Poorly house trained dogs can also create the necessity to replace all carpets and pads to remove the odor.

I wonder if I should use odor sealing paint, cleaner or lay something on the floor before installing carpets and vinyl flooring?