Deductions for repairs following move out

[Pratheek Lakur]

Hello,

Our first tenant is moving out early next week and I have had a chance to walk the property and have noted several damages. I have scheduled a contractor come assess how much the repairs would cost but wanted to get an idea from the folks here on how to approach with the charges on the tenant.
1. Looks like they messed with irrigation and there are patches of the yard that has developed cracks because of low moisture. What part of the cost is to incurred by the tenant for the repairs? 100%? The yard was not completely green when the tenant moved in but we didn’t have dead grass or cracks in the ground.

2. Several small dents and scuff marks on the refrigerator and there is no way to fix most of them. I read few responses and saw folks suggestion like 50$/dent? 
3. 4 spots on the wooden flooring with scuff marks that needs fixing. It does not look like regular wear and tear. Would I be right to charge the full cost to repair?

It’s my first time renting a home so would appreciate all the response/help from the community. 

Thanks,

Pratheek