End of a letter (what write if you want give a good motivation for someone)
I am writing a letter for someone who have a problem. (emergency family).
But I don't know what write on the end of the letter.

What should I write?
'best wishes' is it ok?

Question

End of a letter (what write if you want give a good motivation for someone)
I am writing a letter for someone who have a problem. (emergency family). 
But I don't know what write on the end of the letter.

What should I write? 
'best wishes'  is it ok?

Answer

best wishes is good if they're ill or not doing well. my condolences would be if the person has passed away.

Answer

Best wishes is perfectly fine.

Answer

Best Wishes is fine.  I'd probably write "Take care."

Answer

Depending on the relationship between writer and his correspondent, I have read such things as:
My prayers are with you.
I'll keep you in my prayers.
All my best.
Remember, you're not alone. Call me if you need to.
Keep the faith.
Always in my thoughts.
I'll be thinking of/about you.
All my love.

Answer

Hello Mr Ricardo, Get me a Gift Card so that we can talk better on Direct Message.

لا تفوّت فرصة تعلّم لغة جديدة وأنت مرتاح في منزلك. تصفّح مجموعتنا المختارة من مدرّسي اللغات ذوي الخبرة وسجّل في درسك الأول الآن!