# Tenant concentration in medical-office investments Canonical: https://chicagocommercialfunding.com/guides/tenant-concentration-in-medical-office-investments/ Markdown: https://chicagocommercialfunding.com/guides/tenant-concentration-in-medical-office-investments/index.md Resource ID: tenant-concentration-in-medical-office-investments Published: 2026-10-21 Updated: 2026-10-21 Attribution: Chicago Commercial Funding Editorial Topic: office Asset types: Office Investment stage: Evaluate Experience level: Intermediate Count medical-office exposure by legal obligor, health-system relationship, specialty, location, and shared infrastructure. Multiple practice names can still depend on one economic event. Medical-office diversification is more than the number of suites or practice signs. Investors should map legal obligors, guarantees, health-system relationships, business dependencies, specialties, geographic exposure, and shared building systems. Several nominal tenants can be affected by one consolidation, relocation, or operating disruption. The objective is to identify which events can impair multiple income streams together and fund the resulting response. A medical label does not make tenant risks independent, and a campus relationship does not automatically create a hospital guarantee. ## Start with legal concentration List every tenant entity, parent, guarantor, ownership relationship, deposit, letter of credit, lease term, and earliest material exit. Consolidate entities supported by the same legal credit while preserving each lease’s rights. A building with six suites leased by subsidiaries of one group may have six contracts but one dominant credit exposure. Conversely, independent practices near the same hospital can have separate legal obligations while sharing an economic dependence. Have counsel verify support and affiliations rather than infer them from branding. The underwriting should distinguish direct recourse, contractual relationship, referral or operating association, and simple proximity. ## Map economic dependencies separately Identify relationships relevant to the actual tenants: health-system strategy, hospital access, specialty clusters, patient catchment, staffing, ownership consolidation, or shared service infrastructure. Use reliable evidence and avoid collecting unnecessary patient information. A tenant’s activity may depend on a nearby hospital remaining competitive, but the degree and contractual implications vary. Ask what would happen if the system relocated services or reorganized its practices. Do not assume all tenants would leave or all would remain. Healthpeak’s original disclosure identifies hospital and health-system viability among outpatient-property risks. It supplies a primary reason to investigate the relationship, not a probability estimate for the subject building. [Healthpeak 2025 risk disclosure](https://www.sec.gov/Archives/edgar/data/765880/000110465926027107/doc-20251231xars.pdf). ## Hypothetical concentration bridge Assume a building produces $1,000,000 annual base rent from ten tenants. Three entities affiliated with System A pay $250,000, $150,000, and $100,000. Two independent practices receiving important but unquantified business relationships with that system pay $100,000 each. Other tenants pay $300,000. Legal affiliated rent is $500,000, or **50%** of base rent. Potential broader economic exposure includes another $200,000, but it should not automatically be labeled guaranteed correlated loss. The supported analysis needs evidence about those independent practices. Create two columns: verified legal concentration and scenario-based economic dependence. This avoids both understating a common risk and overstating an uncertain affiliation. The investment memo should explain the source and confidence for each relationship. ## Stress a common event rather than isolated defaults Suppose a hypothetical system reorganization causes two affiliated tenants paying $400,000 in total to leave at available dates. Assume $100,000 of expense recoveries also stop, $70,000 of related expenses decline, and other costs remain. The annual operating cash deterioration is $430,000 before capital and debt effects. If replacement requires $600,000 TI and $80,000 commissions over eighteen months, the owner faces both a recurring income loss and a concentrated capital event. Multiplying a small independent default probability across ten tenants would miss that structure. The example does not predict a health-system action or establish legal exit rights. Counsel should identify the actual dates and conditions; the investor should model the consequence of a plausible common event. ## Lease timing can increase concentration Map expirations, options, breaks, and notice dates by group. A building can have staggered individual leases but several rights controlled by one decision-maker in the same period. Conversely, a common parent with long enforceable terms may have different near-term exposure. Show rent, recoveries, and capital by event date. Do not rely only on WALT. A long average can coexist with a major near-term system decision or a large specialized suite coming vacant. Healthcare Realty’s original reporting describes a strategy associated with hospital campuses and health systems. That context makes relationship and term analysis relevant without making campus location a universal credit benefit. [Healthcare Realty 2025 filing](https://www.sec.gov/Archives/edgar/data/1360604/000136060426000018/hr-20251231.htm). ## Business ownership and property obligations can diverge A practice acquisition can change operations while the lease continues in the original entity or transfers under defined rights. Review assignments, change of control, guarantees, and notices with counsel. Do not assume a business sale automatically releases or strengthens the lease. A hospital-affiliated name can conceal a joint venture, subsidiary, or independent relationship. Public healthcare-operator reporting shows that outpatient facilities can involve partnerships and multiple structures. The subject property needs its own documents. [Tenet 2025 filing](https://www.sec.gov/Archives/edgar/data/70318/000007031826000012/thc-20251231.htm). Update the concentration register when ownership or support changes. A static acquisition list can become misleading after several years of practice consolidation. ## Shared systems create another common risk Review central HVAC, power, water, elevators, access, telecommunications, parking, and other systems serving multiple tenants. An outage can affect several businesses regardless of legal credit diversification. Obtain appropriate engineering and operational advice on reliability, maintenance, redundancy where relevant, and project phasing. Do not prescribe clinical continuity measures from an investor model. The tenants’ qualified advisers should establish their needs. Price owner obligations and possible tenant remedies with professional review. A fully leased building can still have a concentrated capital requirement if one shared system is near replacement. ## Specialty concentration affects backfill Several tenants in one specialty may share business pressures or require similar infrastructure. Specialized space can help attract replacements within that field while narrowing alternative use. Evaluate both effects. Identify realistic backfill users, their required scope, expected rent, approvals, and timing. Do not assume general office tenants will pay for medical improvements they do not need. Keep reusable infrastructure separate from practice-specific equipment. A 10,000-square-foot vacancy at $90 per square foot owner work requires $900,000 before commissions and carry. If two related tenants leave together, the owner may not be able to fund both promptly. The capital plan should reflect the full event rather than an average per-suite reserve. ## Geographic diversification within one building is impossible A single property shares local demand, access, taxes, insurance, weather, and municipal conditions. Tenants with different specialties remain exposed to those property-level factors. Do not equate tenant diversity with portfolio geographic diversification. For a Chicago-area asset, identify the actual patient catchment, workforce access, competing facilities, and jurisdiction. A metropolitan healthcare demand narrative cannot establish the subject building’s tenant retention. Use current local evidence where available and separate it from national sector commentary. Avoid asserting a demographic trend automatically produces rent growth for every medical suite. ## Match financing to the concentrated downside Ask lenders how they evaluate tenant groups, guarantees, campus relationships, remaining terms, specialized improvements, and replacement demand. A lender may aggregate related tenants differently from the owner’s rent roll. Overlay maturity with the relevant group’s lease calendar. Refinancing during a coordinated departure can reduce proceeds while capital need rises. Review reserves, leasing approvals, cash-management requirements, and extension conditions in actual documents. Model lower proceeds and additional equity rather than assume the same leverage remains available. The investor should know how the property survives the concentration event before choosing the loan. ## Use expected loss without confusing it with funding Probability-weighted analysis can compare scenarios when assumptions are defensible. It does not create cash. If a common event costs $1,000,000 and an illustrative probability is 15%, the $150,000 expected amount will not fund the realized event. For a single-property owner, identify reserves, committed capital, borrowing capacity where genuinely available, and actions that can reduce or phase the need. Do not rely on uncommitted future investor contributions as certain sources. Document uncertainty rather than invent precise probabilities for health-system decisions. Sensitivity ranges and qualitative evidence can be more honest than a model with unsupported decimal places. ## Monitor relationships and property facts Track contractually available financial updates, payment behavior, practice ownership, public system announcements, renewal discussions, service issues, and capital condition. Distinguish verified events from rumors. Maintain confidentiality and appropriate access to sensitive tenant information. The investor needs relevant business evidence, not patient records. Report conclusions with sources and limitations. Update scenarios when a material relationship changes. A practice acquisition, service relocation, or major lease amendment should trigger a review of legal concentration, economic dependence, and the capital schedule together. ## A concentration decision sheet Present legal-group rent, broader economic dependencies, lease dates, specialized area, shared systems, supported backfill, full funding need, and financing consequences. Identify the evidence behind each connection and what remains provisional. A concentrated property can be attractive at the right basis with strong documents, useful space, and adequate capital. The decision should state why the risk is compensated rather than hide it behind a count of tenants. Medical-office durability comes from capable obligors, workable location economics, useful infrastructure, and funded ownership. Mapping common dependencies helps investors understand how much of that durability rests on one event and what they can do before it changes. ## Refresh the exposure map after changes An acquisition, affiliation, new guarantor, or service-line relocation can change the dependency map without changing the sign outside a suite. Ask for evidence of the event and review its effect on lease obligations, credit support, and business continuity. Preserve both the previous and revised analysis. A stronger parent relationship may help operations while leaving the legal tenant unchanged; do not describe new support as a guarantee unless the documents actually provide it. ## Source registry - [Healthpeak 2025 annual report — hospital and health-system viability risk](https://www.sec.gov/Archives/edgar/data/765880/000110465926027107/doc-20251231xars.pdf): accessed 2026-10-21 - [Healthcare Realty 2025 hospital and health-system strategy](https://www.sec.gov/Archives/edgar/data/1360604/000136060426000018/hr-20251231.htm): accessed 2026-10-21 - [Tenet 2025 outpatient and joint-venture operating structures](https://www.sec.gov/Archives/edgar/data/70318/000007031826000012/thc-20251231.htm): accessed 2026-10-21 ## Related resources - [A Chicago investor’s guide to office and medical-office investment](https://chicagocommercialfunding.com/learn/office/) - [Medical-office buildouts and specialized tenant requirements](https://chicagocommercialfunding.com/guides/medical-office-buildouts-and-specialized-tenant-requirements/) - [Office floor plates building depth and tenant flexibility](https://chicagocommercialfunding.com/guides/office-floor-plates-building-depth-and-tenant-flexibility/)