Every CV has a typo in it.
(I've read a lot of them)
Doesn't mean it's a good thing.

It's a big turn off when attention to detail is a job requirement, as it is for the juniors especially that we recruit. If you can't produce a typo-free CV when you have all the time in the world, how likely are you to when you have a client screaming for a presentation having brought the deadline forwards? I realise not all jobs require this but plenty do.
The thread title is asking for advice, that's mine. It's an easy win compared to having experience or a skillset to do a job, when you don't. You simply need an able and willing proofreader.
The point is now moot anyhow as the CV has been sent.