William Mariani

William Mariani | Broker-Owner, NextHome Sierra Realty
If you’re buying or selling in Northern Nevada, you need more than an agent—you need a strategy.
William Mariani is known for getting deals done in one of the most competitive and complex markets in the region. With nearly 20 years of experience Northern Nevada and hundreds of successful transactions, he helps clients win by removing uncertainty and replacing it with clear, proven systems.
For sellers, that means strategic pricing, standout marketing, and skilled negotiation designed to maximize return.
For buyers, it means preparation—not pressure.
William’s signature “Buyer Safe Island” process gives clients a major advantage. Before writing an offer, he walks them through the entire contract using real numbers from their lender—breaking down costs, timelines, and outcomes so there are no surprises. When the right home hits, his clients move fast, confident, and in control.
He also brings deep expertise in foreclosures and distressed properties—navigating complex deals that many agents simply can’t handle.
As the broker-owner of NextHome Sierra Realty, William has led multiple sales teams and trained Regional Directors for a national real estate franchise. He’s been recognized as a Top 25 Realtor nominee by the Women’s Council of Realtors Northern Nevada, and more importantly, has built a business on repeat clients who trust him through multiple transactions over the years.
Originally from Mammoth Lakes and a graduate of the University of Nevada, Reno, William has deep roots in the region he serves. When he’s not working, you’ll find him skiing in the winter, hiking in the summer, or giving back—through his charitable efforts.