The loss of PR status itself simply returns the individual to the status of a FN (Foreign National), with no disqualification or handicap for having been a PR but losing that status.
That is, the loss of PR status itself is NOT a disqualifier for future PR applications.
Certain causes for losing PR status have additional or collateral effect. In a situation where a PR loses PR status due to serious criminality, for example, the serious criminality renders the individual an inadmissible FN. Similarly, if PR status is lost because of misrepresentation, there is a period of time that individual will be banned from Canada . . . it is not losing PR status that results in the ban, but the rather the misrepresentation results in the ban.
Loss of PR status due to a failure to meet a condition or the PR Residency Obligation does not itself have such collateral effects . . . just the loss of PR status.
The law is currently set up, for example, that a PR in breach of the PR Residency Obligation can surrender PR status at a POE and be given a six month Temporary Resident Visa.
And such PRs are entitled to pursue future applications for PR, dependent of course on their qualifying.