Social media post template, letterhead, customer and supplier registration form

I am looking for a freelancer to create a social media post template, letterhead, and customer and supplier registration form for my business.

Customer and Supplier Registration Form:
- The registration form should include fields for name and contact details, as well as business information.

Social Media Post Template and Letterhead:
- I prefer a classic and professional style for both the social media post template and the letterhead.

Quantity:
- I need 1-3 social media post templates and letterheads.

Ideal Skills and Experience:
- Experience in graphic design and creating templates for social media posts and letterheads.
- Knowledge of designing registration forms with fields for customer and supplier information.
- Ability to create classic and professional designs.