He is also working (on the weekend, I might add) to get gas service restored as quickly as possible.If the Tenant wanted to complain, she is regulated by law and required to follow a process. 

She has a legal right to be there, and you have a legal right to restore your access, just give them proper notice.

In addition, if you propose to modify the unit in a way that will require restoration when you leave (such as the re-positioning of lowered kitchen counters), the landlord may require you to pay into an interest-bearing escrow account the amount estimated for the restoration.

I figured out a few things that helped restore my sanity.  

Check out your habitat for humanity restore for items. 

If you're a car guy it's like Jay Leno telling you not to buy a classic car until you can afford to pay to have a total restoration done on it.

I would talk to them to clarify that, and propose to them that not only will you be there during the project to oversee the process, and will be there to clean up after them, and pay for any work needed to restore their side of the yard if needed. 

I know this is a difficult process to go through.I'm an investor, flip fire-damaged properties and own a restoration company that specializes in emergency services/boardup.

However, don't compound this loss by delaying the restoration of the unit and getting new tenants in. 

No problem, except that if I wanted to get the power line restored, we had to redo all electrical per the county inspector.