We delivered an AI acquisitions analyst for an out-of-state investor buying rental property in Charleston — one that recomputes the tax bill at the non-owner-occupied ratio, checks the parcel against the current FEMA panel instead of the listing sheet, and returns a one-page go, no-go, or go-at-a-lower-number with the three assumptions the answer turns on.

He sold a commercial HVAC distributorship outside Cincinnati in 2019, and because his daughter had spent four years at college here, he put part of the proceeds into small rental property in Charleston rather than somewhere he could drive to on a Saturday. Six properties in four years — two duplexes in North Charleston, a 1940s cottage in the Old Village, three doors on James Island. He has stood inside four of them. His agent sends eight to twelve listings a week, and in this market an answer is expected inside a day.

So for four years he was buying on the strength of twenty-two photographs, a listing sheet, and a phone call with two people who are both paid when he closes. The brick duplex off Dorchester Road taught him what that costs. The listing showed annual taxes of eleven hundred and eighty dollars and a flood zone of X. Both were true and both were useless.

The tax figure was the seller's, and the seller lived there — South Carolina assesses an owner-occupied home at four percent of value and everything else at six, so the day he closed, the same building's bill went to thirty-five hundred and forty. The flood zone came off a panel that had been superseded; the parcel had since been remapped to AE with a base flood elevation two feet above the slab, no elevation certificate was on file, and the six-hundred-and-eighty-dollar policy he had penciled in came back quoted at thirty-nine hundred. He held it nineteen months and sold for twenty-two thousand less than he had in it.

He tried to fix it by hand. He built a checklist and worked the county assessor site, the FEMA map service, and the permit portal himself. It took most of an evening per address, and by the time he finished one, the property was under contract. A checklist that takes four hours does not survive a market that moves in forty-eight.

What we built for him starts from an address and ends in a recommendation. He forwards the listing email and it does the rest. It pulls the parcel record and deed chain from whichever county the address falls in — Charleston, Berkeley, or Dorchester — and recomputes the tax bill at the six percent non-owner-occupied ratio using the millage for that specific tax district, rather than repeating the number on the listing sheet. It checks the current effective FEMA panel, reports the zone and base flood elevation, and says plainly whether an elevation certificate exists, because if one does not, the insurance figure is a guess and should be labeled as one.

It reads permit history — reroofs, service upgrades, additions that were never pulled — and flags unpermitted square footage, which is square footage an appraiser will not count. It checks the parcel's zoning against the city's short-term rental ordinance, which outside the Old and Historic District usually means no, and underwrites the deal as a long-term rental when that is the answer. It builds comps from signed leases rather than asking rents. And it prices coverage the way a coastal carrier actually will, including a wind and hail deductible set at two percent of dwelling coverage — eight thousand dollars on a four-hundred-thousand-dollar building before a carrier pays anything.

The output is one page. Go, no-go, or go at a lower number, with the number. Beneath it sit the three assumptions the recommendation is most sensitive to and what each would have to become for the answer to flip. And it always lists, separately, what it could not verify: a crawlspace it has no photographs of, a roof age it could only infer from a permit that may never have been pulled.

It will not hand back a clean go. He was specific about that. He wanted the thing to tell him what it did not know. Seven months in, he has run sixty-one addresses through it.

Nine reached an offer and he closed three. It killed two he would have bought under the old process — one where the recomputed tax bill took four hundred dollars a month out of the return, one sitting in AE with no certificate and the same story as Dorchester Road. Answers come back in about twenty minutes, so he is now the buyer who responds the same afternoon instead of the one asking for another day. "I'm nine hours away," he said.

"This is the closest thing I have to standing in the yard."