I received a similar letter yesterday.

Dear Teacher <my name>,
I am Dr. Jian Kang of Anhui Province of China. I
worked with Anhui Provincial People's Hospital before I
relocated to 230 Chillingham Road,
Heaton, Newcastle, few months ago and right now, I am
in search of a professional International English Language teacher
who can take my Wife, Meili and my 2 kids, Nuo and Niu in English
classes I want you to know that i currently have someone who takes
them English but
he his not dedicating much time that i want my family to be giving,he
has another job which
doesn't make him have enough time for teaching.
My family are thereby not progressing in English which is the much
more reason i prefer to hire
someone who will relocate and will be able to teach and at the same
time access there learning
The job is for one year so that they could adapt well in English
before i will enroll them into private schools here.
My wife and Kids are my treasure so I offer to pay you 4,500.00GBP if
you will take up this position. I will provide you an Accommodation,
furnished with a Television Set, and Internet Ready computer. A
vehicle will be available also for Mobility if you can Drive.
I need your updated resume for me to discuss more about you with my
family and also talk to your references. Applicant Must be willing to
relocate.
Hoping to hear from you soonest, Cheers and God's blessings

Regards,
Dr Jian Kang
230 Chillingham Road,
Heaton, Newcastle,
Tyne And Wear, NE6 5XL.
+447024028273