St. Mary's (MD) Investor Pulse Report (2025-Q4)

Investors hold a significant footprint in the St. Mary's County housing market, owning 5,041 single-family residential properties, which constitutes 14.4% of the total SFR inventory of 34,943 homes.

The market is overwhelmingly dominated by individual investors rather than corporations. Individuals own 4,205 properties, representing 83.4% of the investor-owned portfolio, compared to 922 properties (18.3%) owned by companies.

This individual dominance is even more pronounced when looking at the entities themselves. There are 5,833 individual landlords compared to just 524 company landlords, a ratio of more than 11 to 1.

Investor purchasing power appears robust, with cash-owned properties (3,137) significantly outpacing financed ones (1,904). This suggests that nearly two-thirds of the investor portfolio is owned outright, indicating strong capital positions among local landlords.

The primary strategy for these investors is clear, with 4,948 of the 5,041 properties classified as rented. This 98.2% rental rate underscores that the vast majority of the portfolio is actively used for generating rental income, not for speculative holding or personal use.

Investors in St. Mary's County demonstrated a remarkable ability to acquire properties at a deep discount in Q4 2025. The average landlord purchase price was $337,041, which is $150,834 less than the $487,875 paid by traditional homeowners—a 30.9% price advantage.

This pricing gap is not a recent phenomenon but a persistent trend throughout 2025. The landlord discount was even wider in Q3 at 34.3% ($161,694), and stood at 17.4% ($84,124) in Q2 and 20.5% ($96,938) in Q1.

The consistency of this double-digit discount suggests that investors are not competing for the same properties as traditional homebuyers. They are likely targeting off-market deals, distressed properties, or homes requiring renovation that are less attractive to the general public.

While acquisition prices for landlords have fluctuated quarterly, the overall trend shows a recovery from the 2020-2023 average of $314,300. The average price in 2025 ($357,041) is 13.6% higher than the pandemic-era average, indicating value appreciation in the types of properties investors target.

Investor activity accounted for 10.3% of the St. Mary's County market in Q4 2025, with landlords purchasing 36 of the 350 total SFRs sold.

The acquisition landscape is dominated by small-scale investors. Mom-and-pop landlords (owning 1-10 properties) were responsible for 31 of the 36 purchases, representing 86.1% of all investor activity.

New entrants are a key driver of this activity, with 27 new single-property landlords entering the market. These first-time investors alone purchased 18 properties, accounting for exactly 50.0% of all Q4 landlord acquisitions.

Mid-size landlords (11-1000 properties) showed limited but targeted activity, acquiring a combined 4 properties across three different tiers.

At the top end of the market, institutional investors (1,000+ properties) had a negligible impact, purchasing only one property. This represents just 2.8% of landlord buying activity, reinforcing the market's reliance on small investors for growth.

The investor landscape in St. Mary's County is overwhelmingly characterized by small-scale ownership. Mom-and-pop landlords, who own between 1 and 10 properties, control 94.5% of all investor-held SFRs.

This concentration at the small end of the market defies the narrative of corporate dominance. The single-largest group is first-time landlords (Tier 01), who own 3,885 properties, representing a massive 74.0% of the entire investor portfolio.

As portfolio sizes increase, the number of properties held drops off precipitously. Mid-size landlords (11-1,000 properties) collectively own just 5.2% of the inventory.

Institutional investors with portfolios exceeding 1,000 properties have a nearly non-existent presence. Their holdings amount to only 17 properties, or 0.3% of the market share, underscoring their limited role in the local rental housing supply.

This highly fragmented ownership structure indicates that the local rental market is shaped by thousands of individual decisions rather than the centralized strategies of a few large corporations.

A distinct pattern emerges when examining ownership by entity type across portfolio sizes. Individual investors form the bedrock of the market, owning the vast majority of properties in smaller tiers, including 91.5% of single-property portfolios and 80.0% of two-property portfolios.

The crossover point where corporate ownership prevails occurs in the 6-10 property tier (Tier 04). In this category, companies own 86 properties, a 60.1% majority share, compared to 57 properties held by individuals.

Beyond this threshold, company ownership becomes nearly absolute. In the 11-20 property tier, companies own 94.9% of the homes, and in the 21-50 tier, their share rises to 97.9%.

This trend suggests that as landlords scale their operations beyond five properties, they are highly likely to incorporate for liability, financing, or operational efficiency reasons.

Even with this shift at higher tiers, the sheer volume of small, individual-owned portfolios means individuals still own 83.4% of all investor properties in the county overall.

Geographic analysis reveals significant concentration of investor-owned properties within specific zip codes in St. Mary's County. The top five zip codes by count (20653, 20619, 20650, 20659, and 20636) contain a combined 3,481 properties, which is 69.1% of the total investor portfolio.

The 20653 zip code is the epicenter of investor activity by volume, with 1,015 properties owned by landlords, representing a 16.5% ownership rate.

However, the highest rates of investor penetration occur in different areas. The 20687 zip code has the highest concentration, with investors owning 42.5% of the housing stock. Four other zip codes (20626, 20618, 20674, 20621) also show investor ownership rates exceeding 30%.

This distinction between high-volume and high-penetration areas indicates varied investor strategies. Some zip codes attract a large number of investors overall, while others represent smaller, niche markets with a high density of rental properties.

The top two areas by count, 20653 (1,015 properties) and 20619 (769 properties), also have similar ownership rates (16.5% and 16.4% respectively), suggesting these are large, stable rental markets.

Overall, landlords in St. Mary's County are in a strong accumulation phase, consistently buying more properties than they sell. In Q4 2025, they purchased 46 properties while selling only 24, demonstrating a clear net-buyer position.

This net-buying trend has been consistent over the past two years. For the full year 2025, landlords bought 252 homes and sold 91 (a 2.77x ratio), and in 2024 they bought 334 and sold 109 (a 3.06x ratio).

A critical divergence in strategy appears at the institutional level. While the market as a whole is buying, investors in the 1,000+ property tier were net sellers in Q4 2025, acquiring only one property while selling three.

This pattern of institutional selling is not an isolated event. These large players were also net sellers for the full year of 2024, with just 5 purchases against 11 sales. This indicates a strategic retreat or portfolio rebalancing by the largest investors.

The opposing trends—small investors accumulating while large institutions are divesting—suggest a potential transfer of properties from larger to smaller landlords or a shift in institutional capital away from the St. Mary's County market.

In Q4 2025, landlords were a party to 46 of the 546 total SFR transactions, representing an 8.4% share of market activity.

A significant price discrepancy was evident across investor tiers. Single-property landlords (Tier 01) recorded the highest average purchase price at $413,319 across 27 transactions. This is substantially higher than the prices paid by most other, more experienced tiers.

The institutional investor (Tier 09) paid just $309,000 for their single acquisition. This price is 25.2% lower than what new single-property landlords paid, suggesting larger players can access different types of deals or leverage scale for better pricing.

Small-scale landlords are also actively trading amongst themselves. In Q4, 18.5% of properties purchased by single-property investors were acquired from other landlords, indicating a liquid market for smaller rental properties.

This inter-landlord activity was confined to the smallest tiers, with no transactions recorded as 'Bought From Landlords' for any tier with more than 10 properties. This suggests that the market for larger portfolios or higher-value assets may be less transparent or liquid.