Portfolio Investment Solutions, LLC. operates from Suite 129 in Santee's Santana Village Shopping Center on Magnolia Avenue, providing debt-portfolio advisory and marketing services for creditors preparing charged-off receivables for the secondary market since 2013. The firm structures portfolio documentation, organizes account-level data tapes, and markets consumer and commercial debt files to a vetted network of buyers, with digital-marketing execution supported by East County agencies such as Ashlynn Marketing Group Inc on Hartley Road. Advisory engagements cover medical receivables, credit-card charge-offs, and auto-loan portfolios, with each data tape scrubbed against Fair Debt Collection Practices Act and California Rosenthal Act compliance requirements before buyer distribution. Auto-loan portfolio clients include dealerships along Santee's Prospect Avenue industrial corridor, where operations such as Alba Racing generate financing receivables that enter the secondary market upon default. Portfolio face values marketed through the firm range from sub-$100,000 bulk files to multi-million-dollar tranches, with most transactions closing within 30 to 60 days from initial submission to buyer funding.