Hello!
I'm Adam McKenna from Zetec IT Solutions, a band of two web developers.
After reading your initial brief I think we have what it takes to design the website that you're after, and do the design for the app to keep it all consistent. I'd be very happy (and would encourage) discussing this more with you before you decide on your freelancer.
Together, me and my partner have vast knowledge of HTML, CSS, PHP, JavaScript, MySQL, Graphic Design, Adobe CC, C# and more.
Hope to hear from you soon.
Regards.