It sounds like the walls in your rental property might be painted with a flat or matte finish paint, which is more prone to getting marks and stains and can be challenging to clean. Flat/matte paints are porous and absorbent, making them less durable and more susceptible to damage during cleaning.
These types of paints are not washable, and wiping them with water and a soft cloth can cause the paint to come off or discolor. If you want to avoid this issue, there are a few steps you can take:
Test a small area: Before attempting to clean the entire wall, test a small inconspicuous area to see how the paint reacts to water. If it comes off or discolors easily, it's best to avoid further cleaning.
Use gentle cleaning methods: For flat/matte-painted walls, avoid using water directly on the surface. Instead, try using a dry microfiber cloth or a soft-bristled brush to remove dust and dirt gently. Avoid rubbing or scrubbing too hard to prevent damage.
Magic erasers or cleaning products: Some people have success using magic erasers, but these should be used with caution, as they can also remove paint. If you decide to use a cleaning product, choose one specifically designed for delicate surfaces or painted walls. Always test the product on a small area first.
Contact the landlord or property manager: If you find the paint is too delicate to clean without causing damage, it's essential to communicate the issue to the landlord or property manager. They may be able to offer a solution or repaint the walls with a more washable and durable paint.
In the future, when you're looking for a rental property or repainting your own walls, consider opting for more durable finishes like satin, semi-gloss, or eggshell. These finishes are easier to clean and are more resistant to damage caused by water and gentle cleaning methods.