I am right now living in an apartment, which I right now which I have been subletting from a Korean family aboufor the past 10 months ago.

The previous tenant price's rent was not bad, about $200 lower than their neighbors, because they had been living there constantly for nearly 8 years with a big discount.

We use the word "rent" instead of "price" when referring to the money that is paid to the landlord to stay in an apartment. Rent is both a noun and a verb.

After the apartment manager checked my document and approved mey moving in., [needs more stuff written here]

This is a sentence fragment. It is missing its second half.

So we are four families on the same floor from four countries.sd

I am right now living in an apartment right now, which I sublet from a Korean family about 10 months ago.

The previous tenant price was not bad,. It was abroutnd $200 lower than their neighbors, because they had been living there constaistently for nearly 8eight years with a big discount.

After the apartment manager checked my document and approved me, I movinged in.

I have three neighbors from three different countries—: Canada, Iran, and Iraq.

So, we arhave four families on the same floor from four countries.sd

I am right nowcurrently living in an apartment, which I sublet from a Korean family about 10 months ago.

The previous tenant's price was not bad, about $200 lower than their neighbors', because they had been living there constantly for nearly 8 years with a bigon a huge discount.

I was lucky to be the first person to contact them.

Or: "I was lucky that I was the first person to contact them" (sounds slightly more direct if that's what you're going for)

Afterwards, the apartment manager checked my documents and approved me, meaning I could now move in.¶
¶
Afterwards, the apartment manager checked my documents and approved my moving in.¶
¶

So we a're all four different families on the same floor from four different countries.sd

The previous tenant's price was not bad, about $200 lower than their neighbors, because they had been living there constantly for nearly 8 years with a big discount.

Afterwards, the apartment manager checked my documents and approved me moving in.

So we are four families on the same floor from four countries.sd