mikrotik as a manageable switch

i am a internet service provider in my town.i have 500 Mbps with 8 IP pool Cir and want to share with my three loop holder, first one require 70 Mbps, second require 20 Mbps and third require 35 Mbps and rest for my usage.i want to give them live ip (public ip ) i want to configure a mikrotik as a manageable switch .how to bound the ports which they pass the my live ip to my loop holder? i have try my best to do so but not succeeded.

to be honest sir, you don’t come across as knowing much about networking. My best advice is to hire a consultant to set up the network for you. I may be expensive at the start but the long term it is going to cheaper, less time consuming, and avoid possible problems for customers, in summary, good for your business.

yes Mikrotik can do what you want, there are many ways of doing it, each with pros and cons, would have to write few pages to list them all.
have a good Googling around and see what suits you the best:
https://mum.mikrotik.com/presentations/BD18/presentation_5339_1526356910.pdf