St. Charles, Missouri
Sell your home and stay in St. Charles.
St. Charles carries real history — the first state capital, the brick storefronts of Main Street, and the Frenchtown and riverfront neighborhoods — alongside newer subdivisions farther out. Owners here range from historic-home stewards to growing families.
Mainstay buys St. Charles homes for 80–95% of their value, pays off your mortgage, and leases the home right back to you — so you unlock your equity without leaving your home, your schools, or your neighbors. We serve all of St. Charles County.
How it works in St. Charles
We bring you our best offer
Built from real nearby comps — no haggling, no pressure.
We buy and clear your mortgage
Sale proceeds pay off your mortgage and any liens in full.
Six months of rent, prepaid
From your own proceeds — so no rent checks for six months.
You get a check and stay put
Keep your home, your schools, your neighbors — as a renter.
Your number, backed by St. Charles comps
Your estimate isn’t a number we made up. Because St. Charles County publishes actual sale prices, your number is backed by genuine recent sales near you — not an estimate of an estimate. It’s a sale plus a lease — not a loan, mortgage, or refinance — and the price is set transparently, with no negotiation games.
See what staying put could look like in St. Charles
A transparent, no-obligation estimate in minutes — cash at closing, your monthly rent, and your mortgage paid off.
We also serve
St. Charles is one of our St. Charles County submarkets — see the full St. Louis & St. Charles service area.