I am the president of a real estate investment firm. My mother tongue is English so English is easier for me but if Japanese is better then Japanese it is.
I am a president of a real estate investment-consultation company. Since my mother tongue is Engresh, I rather feel better in it, but I will use Japanese if you prefer it.
I am a president of a real estate investment company. English is the mother tongue so it would be easier, but if Japanese is convenient I would speak in Japanese.
I am president and run real estate investment company. My mother tongue is English and much easier to communicate each other. If you prefer Japanese, I will do it.