MRI Strata Master vs Custom AI Agents: A Build-vs-Buy Guide for Principals

Your contract with MRI is up for renewal. Merlo AI is in the quote. The committee is asking whether you should sign for another three years, bolt on the AI module, or do something different entirely. Someone on your team has been reading about custom AI agents and wants to know if that's the smarter play.

This is a bigger decision than it looks. Strata Master is probably sitting at the centre of your operation. Your trust accounting runs through it. Your levy cycles run through it. Your registers live there. Ripping it out is not a casual project. But neither is signing another multi-year agreement without understanding what's changed in the last 18 months.

Here's how to think about it.

What Strata Master actually does well

Let's not strawman the incumbent. MRI Strata Master is a mature platform that handles the things that are genuinely hard to get right: trust accounting compliant with each state's legislation, levy issuance and receipting, insurance and compliance registers, meeting management, and document storage. It's been doing this for decades. The accounting engine is battle-tested and auditable.

That matters more in 2026 than it did three years ago. The NSW Strata Managing Agents Legislation Amendment Bill 2024 brought in tighter disclosure rules, stronger penalties, and more transparency obligations that came into effect through 2025. QLD is tightening in parallel. If your trust accounting and compliance registers are wrong, you have a regulatory problem, not an efficiency problem.

Strata Master also has the integration surface. StrataVote, StrataCash, Merlo AI, and a list of third-party tools plug in via documented APIs and data feeds. You are not alone on an island.

And it's familiar. Your managers know the keyboard shortcuts. Your finance team has a closing routine. Switching costs are real.

Where it hits the ceiling

Strata Master was built as a system of record. It stores data. It issues documents. It enforces process. What it was not built to do is act.

A system of record waits for a human to do the next thing. A strata manager reads the email, opens the record, clicks through the screens, types the response, uploads the file, logs the note. The software is the filing cabinet. The manager is the engine.

That's fine at 40 lots per manager. It breaks at 120.

The places Strata Master hits its ceiling are the places where work is multi-step, judgement-based, and triggered by external events:

• An owner emails asking why their levy notice is different from last quarter. Answering that requires reading the budget motion from the last AGM, checking the sinking fund forecast, pulling the ledger, and writing a plain-English reply. Strata Master stores every piece of that. It doesn't assemble the answer.
• An insurance renewal arrives. Coordinating quotes, updating the committee, reconciling the sum insured against the last valuation, and getting sign-off is five days of email thread. The platform holds the policy document. It doesn't run the process.
• A contractor logs a job in the portal. Keeping the owner informed, chasing the contractor, updating the committee, closing the work order, and filing the invoice is ten touches. Strata Master records eight of them. You do the other two hundred.

Merlo AI is MRI's native answer to this. According to the Merlo AI + Strata Master datasheet, it targets a meaningful chunk of day-to-day admin: inbox triage, AGM scheduling, compliance coordination, routine replies. The lift any individual firm sees from any AI rollout — Merlo or otherwise — comes down to portfolio mix, process discipline, and how clean the data is going in. But the direction is right. These are real jobs a real LLM can do, and MRI shipping a native layer is a good thing for the industry.

The question is whether a packaged bolt-on is the right shape for your business.

What a custom agent approach looks like

The Australian strata market is larger than most people running it realise. 368,234 strata schemes, 3.19 million lots, and 4.2 million residents according to UNSW City Futures and SCA. The firms managing them have wildly different portfolios, workflows, and client bases. A 20-scheme boutique in inner Melbourne and a 400-scheme operator across Queensland and NSW are not the same business.

A packaged AI assistant, by definition, has to average across all of them. Its roadmap is set by the vendor. Its actions are constrained to what the vendor's product team has shipped and tested. Its tone, policies, and escalation logic are defaults.

Custom AI agents flip that. You define the workflows. You define the policies. You define when the agent replies, when it escalates, what it can and can't do autonomously, which systems it reads from and writes to. Strata Master stays where it is. The agent sits on top, pulling from your email, your document store, your ledger, and your registers, and taking actions inside guardrails you set.

The AI Strata venture between ActiumAI and Michael Teys Strata Advisory, announced in late 2025, is one public example of a firm commissioning compliance-oriented agents rather than buying a bolt-on. We're doing similar work with one of Perth's largest strata groups.

It's also worth reading the Grace Lawyers commentary on AI in strata maintenance. Their point is simple: AI does not shift legal liability. The licensed strata manager remains responsible for the advice, the decision, the disclosure. That has implications regardless of whether you go packaged or custom — you want agent behaviour you can inspect, constrain, and explain to a tribunal if you ever have to. A custom build gives you direct control over those guardrails. A packaged product gives you the vendor's. Both can be made to work; you just need to know which one you're choosing and why.

The comparison

Criteria	Strata Master alone	Strata Master + Merlo AI	Strata Master + custom AI agents
Time to value	Already live	Weeks	4–8 weeks for first workflow
Customisation	Low (config only)	Low to medium (vendor roadmap)	High (your workflows, your policies)
Integration surface	Core accounting	Core + AI on vendor-supported data	Core + AI across email, docs, portals, ledger
Total cost over 3 years	Licence only	Licence + per-seat AI fee	Licence + build + run (higher upfront, flatter at scale)
Data ownership & audit trail	You own it	Shared with vendor AI layer	You own it, including agent decision logs
Vendor coupling	Single vendor	Single vendor across stack and AI	Multi-vendor by design — agent layer is portable
Workflow specificity	Standard configurations	Configurable within the product	Tailored to your firm's process
Compliance control	Platform-level	Configured within vendor guardrails	You define the guardrails

When each option is the right call

Stay on Strata Master without the AI layer if your portfolio is under about 50 schemes, your managers are not drowning, and your growth plan is linear. You don't need to buy problems you don't have.

Add Merlo AI on top if you want the fastest path to automation, you're happy inside MRI's ecosystem, and your workflows are close enough to industry standard that a packaged product fits. For a lot of firms this is a genuinely sensible answer. You get the vendor-stated claim of significant admin reduction, you don't run a build project, and the integration is handled.

Commission custom agents if you're above 100 schemes per manager and hitting the ceiling, if your service model is a differentiator you want to protect, if compliance complexity in your state is rising and you want auditable agent behaviour, or if you've already tried a bolt-on and hit the roadmap wall. The upfront investment is larger. The ceiling is much higher.

These aren't mutually exclusive either. Plenty of firms will run Strata Master as the accounting core, Merlo for generic inbox triage, and custom agents for the three or four workflows that actually define how their business runs.

The right answer depends on what you've already got, how big your portfolio is, and where your team is losing the most hours. If you want a second opinion before you sign the renewal, we'll look at your stack and tell you honestly where a custom agent earns its keep and where it doesn't. Book a comparison call and we'll work through it.