", shows your inexperience.The cashflow numbers for Class C & D properties only look good on paper because few investors plug the correct assumptions into their ROI calculators.Have seen many newbies use a 5% vacancy factor for Class C & D properties with nothing built into their calculations for tenant-nonperformance or the extra damages low-demographic tenants statistically cause.BTW: we recommend using at least a 20% Vacancy+Tenant-nonperformance number.

As a Property Manager in a market where many owners choose to manage on their own, I've seen several examples of owners losing their homes or properties because their tenants did not pay or caused excess damage.

Still need to clean it with regular household cleaning supplies, keep the dehumidifier running, and try to increase some air flow if possible. 

Does that mean I forfeit any right to make any deductions for damage and must return the whole deposit?

Is air conditioning required?

My father is in the home improvement bussiness, we just had a hail storm pass through that damaged peoples roofs.

You can even sweeten the pot by telling them they don't have to clean, and you will hand them their deposit on the day of move-out after a 10-minute inspection to verify there are no damages. 

Hope to add air purification.  

You are just pulling statements out of the air to seemed enlightened.

Changing the locks and adding security to the home, to ensure he does not vandalize or damage the property.