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310 Main St Fourplex
C Composite 55.55
Why this score? — see what drove the C grade

The composite is a weighted blend of 9 inputs, each scored 0–100. Each bar is that input's sub-score; the figure is the points it added to the 100-point composite (weight × sub-score).

  • Cash flow +20.4/30.0
  • ARV discount +7.5/15.0
  • Appreciation +6.9/10.0
  • DSCR +6.5/10.0
  • 1% rule +4.7/10.0
  • Livability +2.6/5.0
  • Rent growth +2.5/5.0
  • Condition / age +2.5/5.0
  • Schools +1.9/10.0

$529,900

310 Main St · Marydel, MD 21649
8 bd · 0.0 ba · 3,600 sqft · MultiFamily public records · 65 Days on market
Built 1900 0.34 ac lot

🖨 Deal sheet 📄 Offer letter ✓ Due diligence

Multi-family units

County records classify this as Multi-Family (5+ Unit). Listing-text estimate: 4 units. estimate disagrees with records

5+ unit building — per-unit beds/baths from public records are typically unavailable; the breakdown below (if shown) is an estimate from the listing text.

Listing remarks MLS

Excellent investment opportunity. Also perfect for a homeowner, live in one unit and let the other units pay your mortgage. 4-unit residential apartments fully rented with long-term tenants. Additional office space available. 5 units total. Current income from 4 units is $5,100/month, potentially $6,100/month including the office. Plenty of parking for tenants, guests, and customers. Updated kitchens and bathrooms. New water heaters. Brand new well system with 20-year warranty. Updated electric panels. 6 separate electric meters. 24 hour notice required for all showings.

Key facts

  • 0.34 acre lot
  • 14 parking spots
  • Built 1900

Neighborhood map

Property Rental comp Retail Transit Schools Stadiums Fortune 500 · Circle radius: 3.0 mi
Loading POIs…

What this means for you Summary

Snapshot

  • This is a 4 × 2-bed/?-bath units multifamily listed at $530k.

Deal economics

  • At list price, monthly cash flow is $691 ($8k/yr) — positive. Per door: $173/mo.
  • The deal already cash-flows at list — no discount required.
  • To meet the 1% rule (rent ≥ 1% of price), the offer needs to be $516k (2.6% below list).
  • Recommended offer: $498k (6.0% below list) — sets the bar for market timing.

Location & tenants

  • Location reads 52/100 on livability (#442 in MD) — a working-class tenant base; expect higher turnover. Strengths: cost of living A+, housing A+; Watch: employment D, schools F, crime F.
  • Caroline County Public Schools (rural): math 13% / reading 29% proficiency, ranked #17 of 24 in MD (top 71%) — low school quality limits family demand, transient renter base, plan for 1-2y turnover.
  • Market conditions: 8 active listings in the ZIP; 59 units permitted in Caroline County in 2024 (0 in 5+ unit buildings).

Forward outlook

  • In year one you build about $24k of equity ($4k loan paydown + $20k appreciation (3.8% local appreciation)).
  • Caroline County population projected at -19% by 2050 — secular population decline; favor cash flow + early exit over multi-decade hold.
  • At projected returns (3.8% appreciation + 3.0% rent growth), your $148k cash investment doubles in ~5 years — after that, you're playing with house money.
  • By year 2, paydown + projected appreciation supports a ~$38k cash-out refi (75% LTV) — recoverable capital for the next deal without selling this one.

Negotiation context

  • It's been on market 65 days — a 6% lower offer ($498k) is reasonable based on typical stale-listing flexibility.
  • 3 sale attempts; this cycle's ask has dropped $100k (16%) from the opening price — seller is motivated, your offer sets the floor, not the list.
  • Current owner paid $160k; list at $530k implies a 231% gain — meaningful room to come down on a strong offer.

Risks & watch-outs

  • Watch-outs: built in 1900 — expect roof / HVAC / electrical / plumbing capex.
  • Climate carrying-cost: major wind risk, 27% chance of damaging wind over 30y; extreme-heat days projected 7→16/yr by 2055 (HVAC capex compounding) — expect insurance premiums to compound above CPI over the hold.
Recommended offer $498,106 (6.0% below list)

Questions for the listing agent

  1. It's been on market 65 days. Have you received any prior offers? Is the seller open to a 6% concession, seller financing, or rate buy-down credit?
  2. Can we see the unit-by-unit rent roll, current vacancy, and any below-market leases? What's the average tenancy length?
  3. What capital expenditures (roof, boiler, parking lot, exteriors) have been made in the last 5 years, and what's planned in the next 2?
  4. Built in 1900 — when were the roof, HVAC, electrical panel, plumbing, and water heater last replaced?
  5. Why hasn't it sold? Are there any deal-killer items the seller is aware of (foundation, flood, title, zoning, code violations)?
  6. Is there a deadline driving the sale (1031 exchange, divorce, estate, relocation)? That informs how much negotiation room exists.
  7. Schools are F-rated, which usually means shorter tenancies and higher turnover. Who's the typical renter profile here, and what's been the actual vacancy rate?
  8. Crime grade is F in this area — have there been break-ins, vandalism, or insurance claims at this property in the last 3 years? What carrier currently insures it and at what premium?
  9. What's the average days-on-market for RENTAL listings here right now (not sales)? A rising rental-DOM trend means longer vacancies and softer asking-rent achievability than the comps imply.
  10. What's the recent tenant-quality profile in this submarket — average credit score on applications, eviction rate, late-payment / NSF rate, and stable-employment percentage? A property-management company in the area should have these aggregated.
  11. How much new apartment / multifamily construction is in the pipeline within 1–3 miles? Heavy new supply (>2% of stock underway) typically softens rents 12–24 months out; light construction supports rent growth.

Investment metrics

1% rule
0.97%
Cap rate
7.86%
Cash-on-cash
5.59%
DSCR
1.25
GRM
8.6

CMA / ARV

No comps found within radius.

Projected returns pro-forma

3.76% appreciation · 3.0% rent growth · sell at horizon

5-year hold
IRR
14.7%
Equity multiple
1.87×
Total profit
$129,496
Equity at exit
$261,414
10-year hold
IRR
15.9%
Equity multiple
3.52×
Total profit
$373,234
Equity at exit
$421,877

Cash invested: $148,372 (down + closing). Projections, not guarantees.

Landlord ↔ Tenant lean methodology

Overall (STATE)
27 Tenant-Leaning
State Maryland
27 Tenant-Leaning · D+14
County
— inherits STATE
City
— inherits STATE
Failure-to-pay is dismissed if cured before judgment; Baltimore has just-cause; strict deposit rules.

ZIP-level market 21649

Home prices YoY
1.2%
Active inventory
8
Price-to-rent
34.2×

Monthly cashflow live

Estimated rent
$5,161 medium interval (Pro) →
Mortgage (P&I)
$2,779
Tax from tax record
$387 /mo · $4,642/yr
Insurance
$221
HOA
$0
Vacancy / Maint / Mgmt
$1,084
Net cashflow
$691

Break-even live

Break-even rent $4,287
Max offer price $529,900
Occupancy floor 82%

4-unit breakdown (identical units grouped — click to expand)

UnitsBedsBathsEst. rent
Total (4 units) $5,161

UW: 25.0% down · 7.5% · 30yr · 1.5% tax · 5.0% vac · 8.0% maint · 8.0% mgmt

Financing live

Cash to close

Down payment
$132,475
Closing costs
$15,897
Reserves months
Total cash needed

Loan-product check · same deal, 3 products live

Conventional

25% down · 7.5% · 30yr

Down + closing
Monthly P&I
Monthly cashflow
DSCR
Eligible?

Personal DTI + credit; lowest rate.

DSCR

20% down · 8.5% · 30yr

Down + closing
Monthly P&I
Monthly cashflow
DSCR
Eligible?

No personal income docs; deal must DSCR.

Hard money

10% down · 12.0% · 12mo

Down + closing
Monthly P&I
Monthly cashflow
DSCR
Eligible?

Short-term bridge; refi at stabilization.

Listing history 25 events

  1. 2026-06-18
    days on market $529,900 Active 65 DOM
  2. 2026-06-17
    days on market $529,900 Active 64 DOM
  3. 2026-06-16
    days on market $529,900 Active 63 DOM
  4. 2026-06-15
    days on market $529,900 Active 62 DOM
  5. 2026-06-13
    days on market $529,900 Active 60 DOM
  6. 2026-06-12
    days on market $529,900 Active 59 DOM
  7. 2026-06-09
    days on market $529,900 Active 56 DOM
  8. 2026-06-08
    days on market $529,900 Active 55 DOM
  9. 2026-06-07
    days on market $529,900 Active 54 DOM
  10. 2026-06-07
    days on market $529,900 Active 53 DOM
  11. 2026-06-04
    days on market $529,900 Active 50 DOM
  12. 2026-06-02
    days on market $529,900 Active 49 DOM
  13. 2026-06-01
    pricedays on market $529,900 Active 48 DOM
  14. 2026-05-31
    days on market $629,900 Active 47 DOM
  15. 2026-05-31
    days on market $629,900 Active 46 DOM
  16. 2026-04-15
    listed $629,900 Active 577-char remark
    Show marketing remark (577 chars)

    Excellent investment opportunity. Also perfect for a homeowner, live in one unit and let the other units pay your mortgage. 4-unit residential apartments fully rented with long-term tenants. Additional office space available. 5 units total. Current income from 4 units is $5,100/month, potentially $6,100/month including the office. Plenty of parking for tenants, guests, and customers. Updated kitchens and bathrooms. New water heaters. Brand new well system with 20-year warranty. Updated electric panels. 6 separate electric meters. 24 hour notice required for all showings.

  17. 2026-03-28
    historical
  18. 2025-08-26
    listed $620,000 Active
  19. 2025-08-06
    historical
  20. 2025-05-27
    price $630,000
  21. 2025-04-25
    listed $650,000 Active
  22. 2005-09-22
    soldstatus $160,000
  23. 2003-11-26
    soldstatus $150,000
  24. 2001-02-09
    soldstatus $85,000
  25. 1997-01-21
    soldstatus $62,000

ⓘ Source: listings_history table (triggers on properties + properties_extension) + one-shot backfill from property_details.listing_events for pre-trigger history.

Tax reassessment forecast MD · Partial reset (capped growth)

Current annual tax
$4,642 · $387/mo
Projected year-2 tax
$5,209 · $434/mo
Expected delta
+$567/yr (+$47/mo · 12.2%)

ⓘ Screening estimate from a state-policy table — verify with the county assessor before closing.

Climate risk First Street

  • 🌊 Flood 1/10 Low FEMA zone X (unshaded) · 0% chance over 30 yrs
  • 🔥 Wildfire 4/10 Moderate
  • 🌡 Heat 8/10 Severe 7 d/yr ≥103°F today · 16 d/yr by 30 yrs out
  • 💨 Wind 6/10 Major 27% chance of damaging wind over 30 yrs
  • 🫁 Air quality 2/10 Low 1 unhealthy d/yr today · 2 by 30 yrs out

Nearby sold comps map

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Walkable amenities ~0.75 mi

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Taxation est. · year 1

Rental income
$61,932
− Mortgage interest
−$29,683
− Property taxes
−$4,642
− Insurance
−$2,650
− Repairs & maintenance
−$4,955
− Management
−$4,955
− Depreciation
−$15,415
Taxable loss
−$366
combined federal + state — saved on this device
Est. tax savings @ 24.0%
+$88
After-tax cash flow
$8,377/yr

For passive investors: Depreciation is non-cash, so a rental often shows a tax loss while cash-flowing — sheltering income. Rental losses are passive: they offset passive income freely, and up to $25,000/yr can offset ordinary (W-2) income if you actively participate and your MAGI is under $100k (phasing out to $0 by $150k); unused losses carry forward. On sale, claimed depreciation is recaptured at up to 25%, and gains may owe capital-gains tax (a 1031 exchange can defer both). Figures are a year-1 estimate at your 24.0% rate — not tax advice; consult a CPA.

Schools (NCES district)

District
Caroline County Public Schools
NCES district ID
2400180
Math proficiency
13% ▼ -22.00%
Reading proficiency
29% ▼ -14.00%
Median HH income
$55,076
Composite
19.16/100
National rank
#8823
State rank
#17 of 24 in MD

Livability — Marydel

Score
52/100
State rank
#442
US rank
#25110

Category grades

Amenities F Commute F Cost of living A+ Crime F Employment D Housing A+ Health & safety F User ratings A

Schools grade is shown separately in the Schools card above.

Census & demographics

Census place
Marydel, MD
Population (ZIP)
1,938

Population outlook (Caroline County) Hauer SSP2

Today (2025)
31,205 people
By 2030
30,204 · -3.2%
By 2040
27,866 · -10.7%
By 2050
25,342 · -18.8%
By 2075
20,554 · -34.1%
By 2100
17,415 · -44.2%

Race, ethnicity, and origin ACS 2023

Neighborhood character
Diverse neighborhood (Simpson 0.60)
Race & ethnicity
White 47% Hispanic / Latino 42% Two or more races 16% Black 4% Asian 3%
Hispanic origin (detail)
Mexican 3%
Common ancestry
Italian 1%
Foreign-born
32% · Canada
Languages at home
60% English-only · Spanish 37% Other Indo-European 3%

Political lean MEDSL · Caroline

2024 margin
Solid R (+38.0) · D 29.9% · R 67.9% · Other 2.2%
2008→2024 swing
-15.0pp toward R · 2008: -23.0pp · 2024: -38.0pp
All cycles
2024: R+38.0 2020: R+32.9 2016: R+39.5 2012: R+24.4 2008: R+23.0

Not yet ingested

Civics

Market trends

HPI YoY
▲ 3.76%
Current HPI
310.7166
Rent YoY
Metro
State GDP YoY
▲ 2.97%
F500 in state
12

Industry mix (Fortune 500 HQ in MD)

Industry F500 HQs Revenue

Price history

+916.0% since first listed
10 events — show timeline
  • 2026-04-15 Listed $629,900 BRIGHT MLS
  • 2026-03-28 Listing Removed BRIGHT MLS
  • 2025-08-26 Listed $620,000 BRIGHT MLS
  • 2025-08-06 Listing Removed BRIGHT MLS
  • 2025-05-27 Price Changed $630,000 BRIGHT MLS
  • 2025-04-25 Listed $650,000 BRIGHT MLS
  • 2005-09-22 Sold (Public Records) $160,000 Public Records
  • 2003-11-26 Sold (Public Records) $150,000 Public Records
  • 2001-02-09 Sold (Public Records) $85,000 Public Records
  • 1997-01-21 Sold (Public Records) $62,000 Public Records

Property tax history

+4.2%/yr

Latest (2025): $4,642 · +1.6% YoY. Source: county tax records.

Cash-flow waterfall

monthly

Sold comps — $/sqft

last 12 mo · ≤1 mi

Loading sold comps…