It is incredibly easy nowadays to take pictures because everyone carries a cell phone, and all the new smart phones have cameras. I recommend that BOTH landlord and tenant take pictures of the condition of the property during move in. Keep the pictures somewhere you can find them later. You may need to refer to them when moving out. The condition of the property when you received it sets the precedent for how the property should be returned. In the event of a disagreement, pictures are worth 1,000 words.
Usually during move in, the tenant requests fixes or ask for permission to make changes. In my experience, I find that New tenants expect everything in their new place to be working and are pickier than long term tenants, especially if they are paying higher rents.
For Move in fixes, try to set a realistic time line for repairs with the tenant, and prioritize the most important things first. The little stuff sometimes just goes away. As a landlord, once a tenant has moved in and is settled, I do not replace consumables like light bulbs, smoke detector batteries, garage remote batteries, or HVAC vent screens but I will make sure the tenant has a fresh set when they move in.
Tenants will often ask for permission to paint the rental the color of their choosing. If you give the tenant permission to paint the unit a new color that is not a neutral such as off white- it may make the unit more difficult to re-rent when the tenant moves out. Be sure to clarify with the tenant, if you give them permission to paint the unit, who is responsible for painting the unit back to a neutral color at move out.
Another point with move in is changing the locks. Most landlords I know don’t change the locks between tenants. It is not required. I personally have no problem if the tenants want to change the locks- all that I ask is that they notify me and provide me with a copy of the new key.