Connecting devices

Quick question and it may seem dumb!

Can I connect my devices this way?

Modem --> Router 1 ---> Switch ---> Router 2

Why you may ask?
There is only one router for this big business and having two routers shooting out wifi for both sides would be great.

Would this work? Basically having wifi at one side of the business and another wifi for the other side of the business (the wire connecting router 1 to the switch is running through the wall from one side of the business to the other side)

Purpose of this setup: to have strong wifi on both sides of the business so the wall seperating the two businesses owned by one owner btw is not interrupting one wifi signal.
 
Yes this works.

Set each wifi to a unique SSID and WPA2 encryption key and give only one SSID/Key to each side.

How about sharing resources across the two: Needed {Yes,No,Must-Not}?
 
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