Buying Another PM Firm: The Due Diligence Checklist That Catches the Real Problems

The Market in 2026

PM firm acquisitions remained active through 2025 despite the broader real estate slowdown, with median deal multiples landing at 0.7-1.2x annual recurring revenue and aggressive private-equity rollups pushing larger transactions toward 1.5-2.0x in attractive markets. The structure is usually 50-60% at close, 40-50% earned out over 12-24 months tied to door retention or revenue thresholds.

Across the 2023-2025 deals we have followed, roughly half underperform the acquirer's model. The pattern: the headline door count looks right, the financials look acceptable, the principal seems engaged. Twelve months later, 20-35% of doors have churned, key staff have left, and the acquirer is renegotiating the earnout or writing off goodwill.

The Door Quality Test

Door count is the headline number and the most overstated metric. The diligence questions:

1. Length of contract relationship by owner. Owners who came in the last 18 months are more at risk during transition than owners with 5-year tenures.
2. Contract type by owner. Month-to-month management agreements (common at small firms) have no retention pull. Multi-year agreements with notice periods do.
3. Owner concentration. If the top 5 owners represent more than 30% of doors, the deal is essentially 5 customer-retention bets.
4. Doors managed for the principal's family/friends. Often 8-15% of small-firm books. These rarely transfer in an acquisition.

The Revenue Quality Test

Revenue per door tells you whether you are buying a real business or a discount operation about to face pricing pressure.

• Median revenue per door per year across 2025-2026 acquisitions: $1,400-$1,900 for SFR, $1,100-$1,600 for multifamily, $800-$1,300 for HOA-only firms.
• Firms with RPD significantly below those bands are operating at competitive pricing that may not be sustainable, or have under-priced contracts that the acquirer will need to re-price (risking churn) or accept margin compression on.
• Firms with RPD significantly above those bands may have ancillary revenue (markups, tenant benefit packages, leasing fees) that does not survive a transition cleanly.

The Financial Audit Items

1. Trust account reconciliations for the last 24 months. Anything that does not tie to the penny is a deal-stopper or a major price adjustment.
2. State licensing status of the firm and every employee. Operating with expired licenses is a discovered-and-fixed cost; operating with the wrong license type for the activities is a deeper issue.
3. 1099 history for owners. Mismatches between books and 1099s often indicate accounting issues.
4. Owner deposits held by the firm. Often a hidden liability — security deposits not properly segregated, reserve funds not properly accounted for.
5. Pending litigation, fair housing complaints, regulatory investigations. Sellers often soft-pedal these. Check state regulatory websites and PACER directly.

The Staff Question

The principal's staff is part of what you are buying. The diligence:

• Tenure of each key employee. Below-3-year tenures on the operations staff signal turnover risk during transition.
• Compensation relative to market. Underpaid staff is a hidden cost — you will either need to raise pay or watch them leave.
• Non-compete and non-solicit agreements in place. Without these, the senior PM walking out with 40 doors is a real risk.
• Retention bonuses or stay-pay structures planned for transition. Standard packages run 10-20% of annual salary contingent on staying 12-18 months post-close.

The Operational Audit

• Software stack. What systems are in place, what are the contract terms, what is the migration plan?
• Vendor relationships. Are they tied to the firm or to the principal personally? Pricing terms?
• Maintenance backlog. How many open work orders, and what is the median age?
• Insurance coverage on the firm and on the principal as broker of record.

The Retention Plan

The single most important post-close artifact is the owner retention plan. Built before the close, not after. Key elements:

1. Personal call from the acquirer's senior PM to every owner within 14 days of close. Not a letter — a call.
2. The principal remains visible and engaged in transition for 90-180 days, with a clear "passing the baton" narrative.
3. No fee changes in the first 12 months for existing owners. The pricing alignment to the acquirer's model comes at year 2.
4. Service-level commitments that match or exceed the previous standard. Owners noticing slower maintenance response in month 3 is the most common trigger for the first wave of churn.

The Earnout Structure

The earnout protects the acquirer if doors churn. But the structure matters:

• Tie to door retention, not just revenue. Revenue can hold up briefly through fee increases even as doors churn.
• Measure at 12 and 24 months. A 6-month measurement is too short; a 36-month measurement leaves the seller controlling outcomes too long.
• Include a step function, not just a percentage. 90%+ retention pays the full earnout; 80-90% pays a percentage; below 80% pays a floor.
• Allocate the earnout across the people who actually drive retention — the principal and key staff — not just the principal.