Can a property have multiple active use permits in place or is only the latest one in force?

For example, I am looking at a CMX-3 property that has a current grandfathered use permit for a single fam. However, I would like to register it via a Visitor Accomodation use permit to rent it out more than 180 days/year. CMX3 zoning changed recently where it no longer allows new single fam use permits. So, if I get a visitor accommodation use permit, will my single fam permit still be in place or do I lose it and won't be able to reclassify the home under the single fam use permit again?