Translation of Hausarrest

After next week, I will tutor the Mr. Zillmay from the language lab in Los Angeles, he is currently in the states. The lesson will take place in LA, but it may be held no earlier than mid-February.
I have sent you the translation a few hours ago. I guess it has just arrived. That is very responsible of you. I will have a look at it immediately. If you want to address somebody formally in the singular, you must use 'usted'.
If you have long text messages - please write me a letter. Then the correction is easier for me. I think it's difficult to get accommodation in town. I have many friends in Madrid.