Kjg09's questions:
1. Outside highly skilled, high demand sectors, yes.
2. Yes. There is a 3 month waiting period.
http://www.ramq.gouv.qc.ca/en/immigrants-foreign-workers-students/health-insurance/Pages/eligibility.aspx
3.. Yes and yes. Baby will also be a Canadian citizen.
Child assistance payments Quebec (note that TFWs become eligible after 18 months)
http://www.rrq.gouv.qc.ca/en/programmes/soutien_enfants/paiement/Pages/paiment.aspx
Federal child benefits (also after 18 months)
http://www.cra-arc.gc.ca/bnfts/menu-eng.html
Click on both CCTB and UCCB
Note that some benefits are means tested.
4. You will pay Quebec and Federal income tax.
Quebec
http://www.revenuquebec.ca/en/citoyen/declaration/produire/taux.aspx
Canada
http://www.cra-arc.gc.ca/tx/ndvdls/fq/txrts-eng.html
Calculator: http://www.creditfinanceplus.com/calculators/calculate-personal-income-tax-canada.php
(Does both CA & QC)
5. Google "studio for rent Montreal". Price varies enormously depending on quality, area, size, etc.
6 & 7. Children of TFWs can attend English schools. Children of PRs must attend French school.
My experience with the language was quite easy, but I was already bilingual when I came here. I do know other immigrant families who don't have problems. Their and my children speak/spoke French at school, English and/or another language at home. I see it as hugely positive and advantageous to the children - bilingual without thinking about it!!
However I can't recommend strongly enough that you and your husband start learning French ASAP, and really really practice hard when you get here. You will need to be able to communicate with teachers; in fact in all areas of life. While English is widely spoken in the city, French is the Official language, and this is taken very seriously. To truly integrate, and for you to feel at home, French would be essential.
HTH, it's a very quick summary! Shout if you need anything else