20 plus years
It readily appears that waiting twenty years is enough to qualify for mandamus. See the May 2022 Federal Court decision in Sharafaldin v. Canada, 2022 FC 768,
https://canlii.ca/t/jpgxw . . . Mr. Sharafaldin submitted an application for Canadian citizenship in 1999. Over twenty years later, as of May this year this application was still pending . . . but on May 27, 2022 a Federal Court finally ordered "
the Minister shall promptly conclude Mr. Sharafaldin’s application for Canadian citizenship."
And, in that case, the FC justice also stated: "
Nearly 15 years for the processing of a citizenship application is manifestly longer than the nature of the process required . . . "
Not sure one has to wait that long to have the government ordered to pay the applicant's attorney's fees, but at least in this case costs were awarded to Mr. Sharafaldin "
in the lump sum, all-inclusive amount of $65,000." Apparently pursuing mandamus can get expensive, at least in some cases. For this order see Sharafaldin v. Canada, 2022 FC 997,
https://canlii.ca/t/jqf7b
I suppose this is not the sort of case those who have been waiting two years are pleased to see.