I caught a similar question yesterday in Facebook by fellow Gun Blogger and Gun Podcaster Paul Lathrop and Mr. Pierce himself posted a link to his article.
“So … if you, as a law-abiding gun owner, wish to share a residence with a convicted felon (or any other category of prohibited person) then you will need to take great care to insure that they cannot be held to have either actual or constructive possession of any firearm or ammunition.”
Please, do not just glance at the above paragraph and think “OK, I got it.” You do not. It is not a simple answer and one tiny mistake, the size of a forgotten .22LR round forgotten under the couch can land both the Prohibited Person and the Regular Citizen in legal hot water.
And get some extra reading with specific cases with Eugene Volohk’s Second Amendment Protects Gun Possession by the Housemates of Felons. Hat tip to Hank G. Shepherd for providing the link.