Finding the Owners and Mailing Addresses Behind 11,000 Apartment Properties
VP of Acquisitions, Los Angeles-area multifamily developer and syndicator · San Gabriel Valley, Los Angeles County · August 26, 2026
What they knew
A Los Angeles-area real estate firm founded in 2018 develops and syndicates multifamily projects in the San Gabriel Valley, with a pipeline of more than 600 units. Its VP of Acquisitions buys two-to-fifty-unit buildings the same way: export the owners from a mapping service, hand the list to an assistant to vet every mailing address in a skip-trace database, then mail 3,000 letters a month. The assessor's address is often a registered agent or a PO box, and vetting one took thirty seconds to ten minutes. He wanted the twenty-to-fifty-unit owners who still pick up.
What they asked
Find every 2 to 50 unit multifamily building in these San Gabriel Valley cities, and for each owner give me the person behind the LLC and the home address the letter should go to.
What MAIA did
Pulled the buy box from parcel records
Unit count, year built, last sale, and owner came from assessor records, so every two-to-fifty-unit building in the target cities landed in one table without a road-by-road export.
Pierced the LLC to the person
MAIA found the ownership record, read state filings to drop lawyers and registered agents, ranked the likely decision maker, and ran a skip trace for a phone and email.
Verified the home address against the county
The residential address from the skip trace was checked against parcel records before it was written to the row, so the letter goes to a house, not a mailbox.
What came back
- 11,000 multifamily parcels across the San Gabriel Valley in one pull, filtered to 2 to 50 units, the year built, and no sale in the last two years
- Owner contacts on nearly all of a 4,000-parcel batch, with about 20 coming back unavailable, and each residential address checked against county records before it hit the row
- 100 rows checked head to head against the assistant's vetted list: an exact match on 15, and on most of the rest MAIA had the current decision maker where the vetted list had a retired CEO or a former leasing manager
What they did next
Three thousand letters a month go out on the list, and the VP is on the phone, 150 calls a week, calling ten percent pickups a win. His assistant has stopped researching and started managing the data, and the pull repeats city by city as the team works outward from the valley. Orange County is next, a market where he knows fewer of the big players and the same pull will tell him who they are.
MAIA had the right house. That's close enough, still a good hit. We pay someone to manually check this for us right now.
