We currently manage over 400 properties across San Diego, spanning both single-family homes and multi-family communities.
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Owners: Portal Login | Tenants: Sign In • Apply Now
CoSine Real Estate is a San Diego based property management and real estate brokerage serving owners and investors throughout San Diego county. We provide full service property management for single family homes, condos, and apartment properties, combining experienced oversight with advanced technology. Our flat 6% fee, transparent accounting, and responsive maintenance systems are designed to protect property value, simplify ownership, and support long term investment.
Call Us
(619) 776-0609
Email Us
Our Mailing Address
PO Box #261059,
San Diego, CA 92196
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