What is the name of the company?
Is necessary to add a slogan?

no slogan... the logo is in the attached artwork

It's OK if I change the font?

Would you prefer a black card or white?

Feel free to change the font. the name is in the logo in the attached artwork.

Would you like both the front and the back of the card to be designed or are you looking for a one-sided card?

I prefer a 2 sided card... but feel free to play with the font. I will say that I''d like the font to be very distinguished, and a sans serif