My neighborhood raises a ferocious male dog.

「neighborhood」というのは、日本語で言うと「近所」に当たります。「neighbor」というのは、「隣の人」ということです。

残念ですね。

He barks and growls at each person who passes by,. I know the owner of the dog.

あるいは、

He barks and growls at each person who passes by and I know the owner of the dog.

The owner once took his dog to me, and I fed some food to the dog andbecause I wanted him to recognize me andso he would not bark at me, but it failed.

The dog only ate my food and forgot me,about me because the next day, when I walked near the garden barfence of themy neighborhood's garden, he still growled and patted the iron door heavily.

残念！

The most unacceptable isthing is that the dog even barks at night when people are near his house, so he works 24 hours a day.

大変ですね。

This is a nuisance for all the people in this area.

賛成しました！

また、

This is a nuisance for everyone in the area.

Someone complained about this to the local police station and the dog was taken outaway by them.

However, oOnly two days later, however, the owner took his dog back home, and nothing changed.

苦しそうです！

「however」の書き方は最初の文で使わない方がいいです。

The dog is strong withextremely territorial, so I hope the owner should have to gives the dog some professional training to desensitize this consciousnessharacteristic.

私も！

「dog is extremely territorial」という言葉は、アメリカでは普通の言葉です。「dog is very territorial」というフレーズでもいいです。

dog is extremely territorial　→ これの方が強いです。
dog is very territorial

Unfortunately, the owner didoesn't recognize this, because he posted a message oin the local resident chat group saying that barking is a natural thing for a dog.

そんなことはないと思います。

In the past two months, I haven't seen the owner or the rest of his family members walkeding the dog outdoors.

あるいは、

In the past two months, I have seen neither the owner nor the rest of his family walking the dog outdoors.

My neighborhood is raisesing a ferocious male dog.

He barks and growls at each person who passes by,. I know the owner of the dog.

These are two separate ideas, and independent clauses, so they should be separated by a period.

The owner once took his dog to me,. I fed some food to the dog and wanted him to recognize me and would not bark at me, but I failed.

Same as above - independent clauses go in separate sentences.

The dog only ate my food and forgot me, and the next day, when I walked near the garden bar of the neighborhood, he still growled and patushed the iron door heavily.

Not sure what you mean by "pat"

The most unacceptable ispart is that the dog even barks at night when people are near his house, h. He works 24 hours a day.

This is a nuisance for all the people in this area.

This is a nuisance for all the people in the area.

Someone complained about this to the local police station and the dog was taken out by them.y took away the dog.

However, only two days later, the owner took his dog back home, and nothing changed.

The dog is strong withly territorial,. I hopewish the owner shwould have to give the dog some professional training to desensitize this consciousness.m.

Unfortunately, the owner didoesn't recognize this, and he posted a message on the local resident chat group saying that barking is a natural thing for a dog.

In the past two months, I haven't seen the owner ofnor his family members walkeding the dog outdoors.

That's one of the reasons that some people in my area don't like dogs only- because their owners do not train them well.