Stewart has been a Nolo editor and author since 1989, writing and editing books on landlord-tenant law, real estate, and other consumer issues. She is the co-author of First-Time Landlord, Nolo's Essential Guide to Buying Your First Home, Every Landlord's Legal Guide, Every Tenant's Legal Guide, Leases and Rental Agreements, and Renters' Rights. She has edited dozens of Nolo books, including How to Buy a House in California, Nolo's LeaseWriter Plus software for landlords, and Parent Savvy.
As Nolo's managing editor, Portmanoversees editorial work on all Nolo books. She specializes in residential and commercial landlord/tenant law, legal issues related to courts, landlords and tenants, and neighbor disputes. She is the author or co-author of Every Landlord's Legal Guide, Every Landlord's Guide to Finding Great Tenants, Every Tenant's Legal Guide, Renters' Rights, Negotiate the Best Lease for Your Business, Leases & Rental Agreements, The California Landlord's Law Book: Rights and Responsibilities, and California Tenants' Rights. Portman received undergraduate and graduate degrees from Stanford University and a law degree from Santa Clara University. Before joining Nolo in 1994, she practiced law as a public defender.