If it’s common meter, budget for it, monitor it, and pay for it yourself.

;-) Sounds great...right up to the point where:1 - the pet owner gets a new pet...2 - or adds one so the original pet isn't alone all day and pees all over.3 - or that small pet gets replaced by a larger one4 - or has babies5 - ...and the list goes on and onYou can write whatever you want into the lease, and it will have little effect, and almost impossible to monitor and then enforce.Dogs bark. 

You'll have to monitor it if you don't know or trust the person but that's the only way I can think of.

What security system can be used so I can monitor activity there?  

Bigger Pockets has some great state forums and usually there are good locals that monitor those.

Bigger Pockets has some great state forums and usually there are good locals that monitor those.

We're joint on that account with him so we can monitor the activity but we don't actually receive any funds in our name on his behalf.

Bigger Pockets has some great state forums and usually there are good locals that monitor those.

I will angle the conversation as “I need to monitor the work to make sure I know any building issues that arise and so I’m on the same page with you about where we are up to”.Is there anything I’m missing, like I’d be in breach of some labour law etc.

Bigger Pockets has some great state forums and usually there are good locals that monitor those.