<human>: Provide a brief overview of the text.

I(30m) lived in my apartment for 5 years by now. And I have neighbors(60f,m) who moved in 2 months ago(downstairs). This neighbors are from hell. They constantly harass me with unreasonable demands. Like, urging me not to use my vacuum cleaner or telling me to cage my pet dog, that they say walks too loudly. They started from threats right away. I'm an immigrant. And they told me, if I don't get rid of my dog and basically seize any signs of existence, they'll evict me and send me back to my country. I tried reasoning with them and explaining that they are encroaching on my rights but they didn't care. Then I just tried ignoring them. Recently, I've learned that they went to our landlord and threatened to file an official complaint. They complained about a noise(false); overcrowding(false); dog barking(rarely). They told landlord that they know that dogs aren't allowed in apartment buildings. It may be true but this law is not enforced and there are other dog owners in our building. Also, the neighbor noticed a wall subdivision that created a separate room out of my living room. Although it's technically illegal, it was made with landlord permission. Long story short. The landlord told me she doesn't want any problems. So I have to lose my housemate, the wall and my dog.
<bot>: What can I do to counter these underhand tactics of my neighbor? Should I also game the system to retaliate? I'd hate to do it because it's against my convictions. But I'm desperate.