Law Office of Theresa Nguyen

The Law Office of Theresa Nguyen is a Tempe-based firm that handles tax law alongside immigration and business matters. On the property tax side, Theresa brings a legal perspective that most assessment consultants can't offer — she understands how to read statutes, build procedural arguments, and escalate cases through the court system when the administrative process stalls. Her client mix includes homeowners, small business owners with commercial real estate, and landlords managing income properties. Because the practice also handles business and immigration work, she frequently helps foreign nationals and new business owners who own property in Arizona navigate an appraisal system they've never encountered before. That cross-disciplinary context gives her a broader understanding of how property fits into a client's overall financial picture.

On the property tax side, the Law Office of Theresa Nguyen handles assessment appeals from initial petition through formal hearing and, when necessary, Arizona Tax Court litigation. Most firms stop at the administrative level; having an attorney means you have someone who can actually take a case to court if the State Board of Equalization doesn't deliver a fair result. The firm files petitions with the Maricopa County Assessor, represents clients at informal and formal hearings, and manages all communication with county and state officials. For commercial clients, they do income-based valuation analysis, reviewing whether the county applied the correct capitalization rate and whether vacancy and expense data was handled accurately. Beyond appeals, the firm offers property tax planning consultations — useful for anyone about to buy or develop property who wants to understand likely tax exposure before committing. They also handle business personal property tax issues, which often get overlooked but can represent real savings for equipment-heavy businesses. Immigration and business clients who own real estate in Arizona frequently use the firm for coordinated advice that connects property tax strategy with their broader legal and financial needs.

The firm starts with a consultation — paid, unlike many contingency-only services — that covers your current assessment, the property's market position, and a realistic view of what an appeal might achieve. That transparency upfront is deliberate; Theresa doesn't take cases she doesn't think she can win. If you proceed, the firm files the petition within the statutory window, gathers comparable sales or income data, and communicates with the county assessor's office on your behalf. They walk you through what to expect at each stage, including the informal review, the formal hearing before the County Board of Equalization, and the State Board if needed. For cases requiring Tax Court, the firm handles the filing, discovery, and hearing. Those cases take longer but can produce larger and more durable reductions, especially for commercial properties where the stakes justify the process.

The firm serves clients throughout Maricopa County with a concentration in Tempe, Scottsdale, Chandler, Mesa, and Gilbert. Commercial clients from across the Phoenix metro area are welcome. The firm also takes Arizona Tax Court cases for properties anywhere in the state when the matter warrants litigation. Call or email the office directly to discuss whether your property location is covered.