Repairs and upgrades boost value but can drain liquidity.Are you using any financing tools to manage improvements while maintaining healthy cash flow?

“Do not let wet clothing or towels sit for long periods — they can cause black stains on walls or ceilings.”Have tenants sign a Mold Addendum acknowledging that they understand their role in preventing moisture issues and will notify management promptly if they see any black stains or experience leaks.Landlord ResponsibilitiesAddress leaks, water intrusion, or condensation issues immediately — prevention is key.Hire licensed contractors for roof, HVAC, or plumbing repairs.Keep documentation and photos of all tenant complaints and maintenance actions.Maintain proper ventilation and dehumidifiers in basements or areas prone to moisture.If mold is confirmed, notify tenants in writing about the remediation process and timeline.Tenant ResponsibilitiesReport leaks or water damage as soon as possible.Use ventilation fans during and after showers or cooking.Maintain reasonable cleanliness and avoid over-humidifying the space.Follow the instructions in the Mold Addendum and cooperate with access for repairs.Final NoteMold prevention is a shared responsibility between the landlord and tenant.

Sealing the basement floor might help   (something that soaks into concrete then hardens,   as oppposed to a paint which sits on surface and flakes off)  then clean the carpets,  there may have been dirty spots providing nutrients to the mold.Add a basement ventilation fan that runs on a timer or continously to keep humidity down.   

But then there is something called improvements, and the improvements is just as much, making the assessed value $2x. she has no idea how this could be.

The best rental property improvements aren't about luxury – they're about durability, functionality, and tenant satisfaction.As a property management company in Rochester NY, we know successful upgrades serve three purposes: attract tenants, support higher rents, and reduce maintenance costs.Kitchen Upgrades Rochester Property Management Companies RecommendDurable Laminate Countertops Skip expensive granite that chips, stains, and requires ongoing maintenance.

Windows and doors: To provide natural light and ventilation, you will need to add windows and doors to the garage.

This includes operating your heating and air-conditioning system as appropriate to reduce humidity, using appropriate ventilation, limiting evaporation of water, promptly removing any visible mold, and immediately reporting to us any leaks or other water intrusion into your apartment or any visible mold that you cannot remove.

Keep any shared or common areas reasonable clean, sanitary, and safe from defects increasing the hazards of fire or accidentHOUSEKEEPING ADDENDUMThe Landlord's goal is to improve the Highlands neighborhood and maintain a high quality living environment for all residents.

@Roland CordarTechnically, you cannot exchange into improvements on property you already own. 

The profit calculations would be your adjusted cost basis (purchase price, plus capital improvements, minus depreciation), subtracted from the net sale of the property (sales price minus closing costs and commissions), like others mentioned above.