I did a check on a guy 10 years ago came up clean as a whistle on my landlord association screening service.

When I looked at the house they kept it very clean.

Definitely helpful.I got a lawyer who did overcharge me a bit but the tenant left the property spot clean.

At AHP, we sometimes see clean out estimates of $3,000 - 4,000 and know well that a local investor could probably get the work done for $500.                                                                                                                                                                                                  

This is the renovation criteria I use in order to make sure the place is clean, safe and actually ready to rent. https://docs.google.com/document/d/1MreMNvXxPZy7AaqMGMFPVunQ... 

Also, our properties are commercial so it's not like I'd need to go to a duplex and sweep and clean the place.IMHO my CPA is not conservative at all. 

Additionally, consider operational costs like cleaning, staffing, and marketing, as they can quickly add up.For management, outsourcing to a professional property manager or leveraging tech platforms for bookings and operations could streamline things, especially if you plan to scale.

For a one-bedroom, cleaning alone would cost around $200.00 in NYC.The fact of the matter is many landlords do not know the going price for labor and supplies. 

Now what you should do is contact the title company and confirm if title was going to be clean and marketable.

STR management is 20-25% (I would recommend self managing or getting a VA), since income is higher you could probably get away with 5% for maintenance / cap ex but remember you need to cover utilities and cleaning for these units which drives up costs.