@Ayyoub Reza in Michigan, if a lease is at least 12 months in length, you can charge tenants for maintenance and if not a health & safety issue, require them to fix it.Why would you have a lease end during the Oct-Feb timeframe, when it's the slowest time of the year for real estate sales & rentals?

Safety is in the eye of your guest.

Wait until they finally move out unless it's a safety issue.

Rental inspections are typically health and safety related.

When it comes to ensuring the safety and integrity of your property, it's natural to want to conduct a background check on your tenants. 

Number two is getting fire hazard insurance (get a quote today it will give you chest pains).

If there’s an electrical issue, it’s typically up to the landlord to fix it.Heating and Cooling Systems: The landlord is responsible for maintaining and repairing any installed heating and cooling systems.Appliances: If the property comes with appliances, the landlord is responsible for repairing them if they break down.Safety Repairs: This includes things like smoke detectors, carbon monoxide detectors, and any other safety equipment the property might have.Remember, these responsibilities can sometimes vary based on the terms of your lease agreement, so it’s always a good idea to clarify these points with your tenants.

Gross negligence is typically defined as conduct showing extreme indifference or a reckless disregard for someone's safety or propertyGood luck determining whether the PM's act rises to gross Wilful Misconduct/Gross Negligence. 

Fees are built into a lease to make that reminder memorable.Refrigerators feel like a modern necessity but they do not rise to the level of habitability concerns (i.e. life, safety, health). 

Otherwise many investors would buy, "kick out," and bring in higher paying tenants.I think the better question is what's needed that is health and safety?