Real Estate · Custom AI DevelopmentCustom AI development for brokerages, teams & property groups
One AI tool can answer a lead. A custom build can run the whole pipeline. That is the difference custom AI development makes.
Lead apps, dialers, and CRM add-ons each solve one slice. Real estate operations are not one slice — they span your IDX, your CRM, your transaction platform, your calendars, and your agents, all at the same time.
Nexum builds custom AI systems for real estate brokerages and teams — multi-channel intake, qualification, routing, and transaction follow-through wired into Follow Up Boss, kvCORE, BoomTown, and Sierra Interactive. Delivered in 6-8 weeks at a fixed price from $12,500.
Every build is scoped to your team during a free diagnosis. These are the custom AI systems real estate teams most often ask us to build.
01
End-to-end lead-to-appointment engine
Captures leads from every source — portals, IDX, paid ads, referrals — qualifies them instantly, routes by geography, price band, and agent availability, books straight into agent calendars, and logs everything in your CRM. No lead waits, no lead is lost.
What it delivers
Multi-source lead capture
Instant AI qualification
Routing by geo / price / availability
Direct calendar booking
Full CRM logging
Built on / integrates
Follow Up Boss
kvCORE
BoomTown
Sierra Interactive
Zillow / Realtor feeds
02
AI voice + text concierge
A 24/7 inbound and outbound voice and SMS agent that answers, qualifies, books showings, and follows up — then hands warm leads to your agents with full context. The conversation never goes to voicemail and never gets dropped.
What it delivers
24/7 inbound & outbound voice
SMS qualification flows
Showing scheduling
Warm handoff with context
Automatic follow-up cadence
Built on / integrates
Twilio
Follow Up Boss
kvCORE
Google / Outlook Calendar
03
Transaction & post-close automation
Once a deal is under contract, the system tracks milestones, collects documents, sends reminders to every party, triggers review requests at close, and re-engages the client’s sphere — so transaction coordinators stop chasing and start managing exceptions.
What it delivers
Milestone & deadline tracking
Document collection
Multi-party reminders
Review request at close
Sphere re-engagement
Built on / integrates
Dotloop
SkySlope
DocuSign
Follow Up Boss
04
Database reactivation & nurture AI
Works the database you already paid to build: detects intent signals, runs personalized re-engagement across email and SMS, and surfaces ready-to-transact leads to agents — turning a dormant CRM into a recurring pipeline.
What it delivers
Intent-signal detection
Personalized re-engagement
Ready-to-transact surfacing
Agent alerting
Recurring nurture cadence
Built on / integrates
Follow Up Boss
kvCORE
Email / SMS
Market data feeds
HOW WE BUILD IT
From audit to production in 6-8 weeks
Fixed price confirmed before any build begins. Your team keeps operating normally throughout.
Weeks 1-2
Audit & architecture
We map your operation, the systems involved, and the exact workflows to automate, then design the system architecture and confirm a fixed price before any build begins.
Weeks 3-6
Build & integration
We build the AI logic and integrate it with your existing tools and data sources. Your team keeps operating normally throughout — no disruption.
Weeks 6-7
Testing & onboarding
We test every scenario against real data and walk your team through what the AI handles and what escalates to them. No technical training required.
Weeks 7-8+
Go-live & maintenance
The system goes live with documentation, a handover walkthrough, and a 30-day support window. Ongoing partnership keeps it optimized as you grow.
INTEGRATES WITH YOUR STACK
Follow Up BosskvCOREBoomTownSierra InteractiveDotloopSkySlopeDocuSignTwilioZillow / RealtorGoogle / Outlook
CASE STUDY
Real Estate AI Voice Agent
See how a custom AI voice agent qualified inbound calls 24/7 and lifted qualified showings for a top-producing team.