You would have to look at a second country outside the Schengen area, or have her apply for a national long-stay visa for Portugal or Sweden. The 90/180 rule applies to the entire Schengen area, unless she has a national visa.
There are parts of Europe outside Schengen, but Portugal is inside. The UK is outside Schengen, and so are Ireland and much of the ...
You will pay 30% tax on 22/30 of the profit, so in practice 22% tax on the profit. No profit means no tax.
Cooperative flats are more than 99% of the market. More info about tax on cooperative flats here: Skatteverket
Yes. It is not forbidden to visit Sweden while you are waiting for the decision about your permit. People with visa exemptions who are waiting for a decision regarding their residence permit are recommended to inform the Swedish Migration Agency if they plan to visit Sweden.
If you have outstanding skills and hold a very strong job profile, you would be able to apply for a job and get a work visa in European countries and after few years receive a PR status.
If you also considering Canada, gain a Master degree and an upper band IELTS test result then go for Express Entry.
Either way, you need to be a good asset for the ...
The major carriers are:
While in Sweden you can get a prepaid SIM from any of them (except Tele2 but including Comviq) at for example Pressbyrån or 7-Eleven
but I'm afraid none of the carriers ship SIMs abroad. Registering a personnummer can be done later with the carrier for some extra benefits but is optional.