Property Management Software for Landlords in Saint Louis

Owning rental property in Saint Louis means more than collecting rent. Tracking income and expenses across units, staying ahead of lease renewals, and knowing your true return takes real time. Mozongi REMA is free property management software built for Saint Louis landlords who want every number in one place.

Saint Louis rental market at a glance

Per the most recent municipal and federal data for the Saint Louis metro area:

• Population: approximately 300k residents
• Median 1-bedroom rent: $1,050 / month
• Vacancy rate: 8.5%

How Saint Louis compares to Missouri

Across the 5 Missouri markets we track, the average one-bedroom rent is about $1,060/month and the average vacancy rate is 5.9%. Saint Louis's $1,050 median is 1% below the Missouri average of $1,060/month, and its 8.5% vacancy is looser than the Missouri norm of 5.9%.

• Gross annual rent (one unit, before vacancy): $12,600
• Vacancy-adjusted annual rent: $11,529
• Saint Louis rent vs Missouri average: 1% below
• Estimated market size: ~300k residents

With higher vacancy, Saint Louis tenants have options — so screening carefully and pricing competitively matters. Know your true cost and cap rate per unit before you set rent.

If your Saint Louis unit is rented below median and your DSCR is under 1.20, you have room to optimize. Mozongi REMA calculates DSCR, ROI, and cap rate automatically for every property.

Property management software made for Saint Louis landlords

Whether you own a single rental in Saint Louis or a growing portfolio across Missouri, Mozongi REMA tracks every property, lease, and tenant and does the math for you.

• A portfolio dashboard showing every Saint Louis property at a glance
• Automatic NOI, cap rate, cash-on-cash return, and DSCR
• Lease and tenant records with document storage
• Rent-collection tracking so you always know who has paid
• Mobile-friendly access from any property visit

Built for Missouri landlords

Renting out property in Saint Louis comes with its own rules, and Mozongi REMA helps you stay organized around them:

• Missouri's landlord-tenant statutes and the Missouri housing or small claims court govern tenancies in Saint Louis — keep lease terms, dates, and renewals organized in one place.
• Rent increases — track current rents against the applicable annual guideline so every adjustment is documented and on time.
• Tenant records and documents — store leases, condition reports, and correspondence per unit.
• Every amount is tracked in USD.

Know whether your Saint Louis rental actually pays

Saint Louis purchase prices and rents both vary widely, so a property that looks fine on paper can quietly underperform. Mozongi REMA calculates net operating income, cap rate, and cash-on-cash return automatically — so you can see whether a Saint Louis unit is earning, breaking even, or costing you money, and decide what to do next with real numbers.

Start free in Saint Louis

The free Starter plan covers up to 2 Saint Louis properties with full financial analytics — no credit card required. As your portfolio grows, paid plans add more properties, automatic rent collection, and portfolio sharing with your accountant.