I can't imagine he'd be agreeable to a higher late fee.In Rhode Island, you do have the option to evict as the tenant loses their right to cure the 5 day demand if they have received two 5 day demands in a six month period. 

If I give them 10 days to cure what’s 5 days to keep a good tenant.  

If there is not any wood structural members, and if the fire took place beyond the 28-day curing time on concrete (when is fresh), the foundation should be intact. 

While procedural rules allow for a cure, the expenses can add up. 

Treat it like a verbal rental agreement.Id start by properly serving a 3-day or 5-day (depending on your state landlord-tenant law) Notice to Pay or Vacate/ Cure or Quit and go from there.The Land Contract will reappear I bet. 

You don’t say where this is at, but based on your state (California) laws, and the facts as you presented them, the first step if the breach of the lease like this was still occurring would be to issue a Cure or Quit notice.

Give them a 14 day notice to cure (or what ever is legal in your area).

If your lease explicitly required the tenant to open the utilities in his/her name, then you can probably serve a three notice to cure or quit based on a breach of the lease agreement. 

Allows a tenant to cure any judgment for non-payment within five court days’ by paying the principal amount of the judgment to reinstate their tenancy.

Cure the default and take the property sub2.