Chavez, 32, is also civic engagement director at Alliance San Diego, a community empowerment and social justice organization whose mobilization fund is a major contributor to the Yes on A campaign.

"We got married in 2019, and it's not been an easy feat to find housing and stay in housing that is affordable for us," she said. "At this point, we are still delaying the growth of our family. My husband and I have tried to do everything that we were told to do that was supposed to get us into a home by our 30s, and it's just not looking like an option. And, as a woman, I also think about how many years I have left to have children, and the time is just ticking.

"We still need more options in the city of San Diego, and Measure A is a step in the right direction. One family that is able to feel safe at night, one family that is able to have their family grow in it — it's really worth it."

San Diego's firefighters face similar financial struggles, says Patrick Farrier, a captain with the San Diego Fire-Rescue Department. The San Diego firefighters' local labor union is among those backing  Measure A.

"They're feeling like the world is stacked against them because they're being priced out of a home, and they just don't know what to do, barring having an independently wealthy family member to leave you a large substantial contribution, or maybe being lucky enough to have some money squirreled away," Farrier said.

"They just feel priced out of the area that they work and they want to live in, and many of our members are commuting from Riverside, from other counties, and now we have members that live across the international border in Tijuana, so it's very tough to see them working so hard and still not being able to scrap enough money together to pay the high rents here or even piece together a down payment for a home."

Elo-Rivera said he understands that some owners will face hardships, and that's why the measure has a number of exemptions for specific situations. But the fact remains, he says, that too many San Diegans can barely afford to rent an apartment, let alone purchase two residential properties.

Among the measure's many exemptions are:

  • Disaster: There is a two-year grace period following the unit being made uninhabitable by a natural disaster.
  • Four units or less: All units on a property with four or fewer separate residential units where the owner uses any unit as their primary residence, so long as they are not the owner of any other residential units in the city.
  • Military service: The owner or immediate family member who occupied the unit is temporarily relocated pursuant to military orders.
  • Owner Death: Two-year period following the death of an owner or family member who occupied the unit.
  • Whole-home short-term rentals: The home is used for whole-home short-term rentals.
  • Medical care: The owner who occupied the unit is in a medical care facility.

Still murky, though, is how the tax will be enforced, given that the ballot measure text leaves that relatively open-ended. According to the Independent Budget Analyst, the city treasurer's office has said it may need four new staff members. Enforcement costs, it said, could reach $1 million or more.

Staff writers Phillip Molnar and Roxana Popescu contributed to this report.