If your agreement was not with the other tenants then you have no obligation to them in any way.

You can only be evicted by someone (or their rep) with a superior right of posession (usually owner or appointed manager).

Only someone with a superior right of posession can seek to evict someone else. Generally an owner.

Likely you can do nothing to restrict their right to conduct business. If they were other sounds or issues would you think stopping them was...

Without knowing more it is hard to say.... but in general someone is only responsible for the rent incured during their lease agreement period.

No, it is unlikely you would know until they decide to make you aware or someone tells.

Yes, you can. As a tentant you have the right to use the property as a true owner would. Unless there is some lease language restricting it you can...

It is hard to understand.. why did you pay a pet deposit if you have no pet? If you have no pet why is it a problem to remove them as requested?...

Your post is impossible to understand and gleen any sort of question from... I recommend rewriting.

As you are likely on a monthly tenancy the landlord must give you a 30 day notice of intent to end the tenancy.... which they have