All items must be kept neat and orderly.All heating vents will be kept clean and free of dust, dirt, and mildew.No noxious, offensive or foul odors are to be permitted to emanate either inside or outside the rental unit from any source, including but not limited to spoiled food, accumulated trash or debris, liquor and beverage containers, dirty laundry, sinks, toilets, bathtubs or showers.

But it's a golden phone call so the paying agent doesn't mind the split.Between non-agents the only thing you can't do is make the fee a function of or contingent upon closing, because for regulators that starts to smell too much "like a commission". 

The adhesive is powerful chemical smell, and you really need to know what you're doing as far as layout, rolling edges, etc.

Any advice on the best way to get rid of the smell in a property from this experience?

While I don't think you need to partner with another sponsor, you will have an uphill battle in selling your experience, when you don't have any.  

If you don't like how they operate, no harm no foul, move on and find a company that suits your needs.

Repairs usually come at the most invconvenient times and expecting them to expedite a repair so you are in compliance with habitability covenents is a losing battle.

The buyer SHOULD have gotten inspections which would uncover dry rot by poking into exposed wood, other than smelling musty or seeing black or green scum on the walls a mold inspection is more detailed and samples go to a certified lab. 

No matter if anyone complains or not there is a decent chance some tenants have left over the smell of chemicals and people showing up far to early in the AM and having problems parking themselves. 

Big burly guys that smell like diesel fuel, drive jacked up 4x4s, chew tobacco for breakfast and have neck tats.