Spartan Investment Group, a Colorado-based privately held real estate investment firm specializing in the self-storage industry, has acquired a new self-storage facility in Lake Stevens, Washington. With 403 units totaling 31,035 net rentable square feet, this acquisition marks the tenth Pacific Northwest property added to their portfolio. Located at 8911 Vernon Rd., the Lake Stevens facility features 161 units of climate-controlled storage and 242 units of non-climate-controlled storage. Constructed in 1999, Spartan will invest $225,000 in upgrades and expanded amenities to improve curb appeal and modernize security. “As we continue…