Darren Nix, founder and CEO of Steadily, has reviewed thousands of landlord insurance claims and pinpointed three costly mistakes that repeatedly drain investor portfolios.

The first error involves underinsuring properties. Many landlords purchase coverage based on mortgage amounts rather than actual replacement costs. A $300,000 mortgage on a property worth $500,000 to rebuild leaves a $200,000 gap. When total loss occurs, insurers pay only up to policy limits, leaving landlords personally liable for the difference. Replacement cost varies dramatically by region and construction type. Investors in high-cost markets face particular risk.

Second, landlords frequently ignore liability exposure. Standard policies cap coverage at $100,000 to $300,000 in many cases. A single lawsuit from a tenant injured on the property can exceed these limits, threatening personal assets and future rental income. Umbrella policies costing $150 to $300 annually provide $1 million to $2 million in additional protection but remain overlooked by cost-conscious investors.

Third, Nix identifies coverage gaps in lease structures. Landlords often fail to require tenants carry renters insurance or maintain property damage liability. When a tenant's guest injures themselves, or the tenant causes damage, the landlord's policy becomes the only recourse. Requiring tenants to carry $300,000 minimum liability coverage costs them $15 to $25 monthly and shifts responsibility appropriately.

Nix emphasizes that most landlords review insurance once at closing, then ignore it for years. Properties appreciate, construction costs rise, and lease terms shift. Policies purchased five years ago no longer match current replacement values or risk profiles.

The solution requires annual reviews with insurers. Landlords should document replacement costs through contractor estimates, adjust coverage as property values increase, and mandate tenant insurance in lease agreements. Strategic umbre