Think elderly people or people with limited English skills etc.........To avoid being bothered 24/7 you'll want to set office hours for yourself.

(And if you know them personally, you don't have to ask if they're a scam.)Very poor English, free email accounts instead of a company email account, not wanting to talk to you on the phone, using Western Union to transfer money are all GIANT red flags.Western Union is a legitimate company, but no legitimate lender uses them.

As for my personal background, after graduating college I spent several years working as an English teacher in China.

I would switch your thinking from looking for that elusive unicorn duplex in a nice neighborhood which you will have to pay a premium for because it's a rare multi-family property in DC, to looking for a house with an english basement, like I think you are suggesting by buying a home in Brookland. 

They are not written in English even though they do use English words.90% of the content is exceptions and special rules instead of explaining the basic principles. 

I taught school in 5th and 7th grade (English) for about 10 years. 

It's awesome that you have come so far in just 20 years and I can't imagine how difficult it must have been to assimilate knowing zero English.

I have one inherited tenant that was a bit of a learning curve because he speaks zero english and has never paid not cash before and I certainly didn't want to be knocking on doors- but once we got into our groove and I opened a local bank account he just deposits the money in zero problems and actually is one of my favorites.My other two tenants I used my realtor and I was SO picky.

thank you in advance and sorry for some english mistakes.

Thank you for the recommendation for me to read the VRLTA, I will attempt to read it but since English is my second language, I was hoping to ask specific questions here instead of having to read the whole VRLTA to answer a single question.