Welcome to Nation One Realty & Mortgage, Inc.

We make real estate a breeze!

Our Services

Big Property Plans?

Whether you’re buying, selling, or renting, we are here for you to support you and guide you through to the finish line. Our top-notch skills ensure you get the best experience.

The Right Price, Always

Looking for large or small, condo or mansion, TICs, fixer-uppers, or luxury? We can find it and get it for you at the price that's right. We can also help with staging, flipping, building, and more. 

We're Ready to Help

If you have questions about affordability, credit, legal matters, or income, trust us to find you what you need fast. We make sure you feel confident and educated every step of the way.  


Sold Listing $1,000,000 - San Jose, CA

Beautiful landscaping, steps to everything!

Sold Listing $360,000 - Manteca, CA

Sweeping views, low HOA fees.

Sold Listing $395,000 - Manteca, CA

See your family here! Recently renovated.


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Our Team

Rex De Belen, Broker-President

I am an experienced real estate broker working in the greater Central Valley area. I work primarily in San Joaquin County, Sacramento County and Alameda County, etc. My team is hard working and honest. My team and I have listed and sold numerous properties and listings. 

Our Professionally trained and experienced sales associates are committed to provide extensive real estate services and optimum assistance.

Again, welcome to our website and I look forward to working with you.

Celsa De Belen, Realtor-Vice President

I am an experienced real estate and also experienced in real estate investment. Welcome to our website and I look forward to working with you soon.

Dioscora Doria, Realtor-Manager

Insert your bio here. Include accomplishments you want visitors to know about.

Call or Visit

Nation One Realty & Mortgage, Inc.

212 W. Yosemite Ave., Ste B, Manteca, CA 95336, US

(209) 456-3940


Monday - Friday: By appointment

Saturday: By appointment

Sunday: By appointment

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