I've found a couple of questionable things in my tenancy agreement, so I'm digging deeper to see what else I can find. I'm wondering if there any other "issues" with this rental situation that is not legal or is sketchy, or whatever else.

My rental situation is like this:
* Double storey house (let's pretend the address is 5 Electric Avenue)
--Upstairs: three bedrooms, kitchen, bathroom, garage - two tenants <-- have their own tenancy agreement
--Downstairs: two bedrooms, kitchen, bathroom, - two tenants <-- have their own tenancy agreement

* The upstairs and downstairs are connected by a stairway, but a locked door blocks access.
* The house is owned by a limited company, so on the tenancy agreement it says the company's name and not a person's name.

There's one water and power meter, but two separate phone lines (water and power are included in rent). There was something cheeky in the agreement saying that if a certain power/water cap was reached, we'd have to split the excess - that's not legally enforceable since there's only one meter between the two of us. But I digress...

There are no unit numbers or anything... so on my tenancy agreement it says "5 Electric Avenue", as it would say for the people upstairs with their separate tenancy. We're both on fixed term tenancies. It seems strange that one property can have two separate tenancy agreements? No separate unit numbers. The people upstairs have a garage, so legally what's stopping me from using it? There's no mention of which rooms I'm able to stay in at 5 Electric Avenue. Nothing like that.