About Me
A Personal Approach to Planning What Matters Most
¡Bienvenido!
I’m Yendi—an estate planning attorney, proud Latina, and longtime Tucson local. I created this firm to offer families something different: legal guidance that feels personal, respectful, and culturally aware. My goal is to walk with you through life’s changes, helping you make the best decisions for your family—not just today, but through every stage to come. Whether you’re planning ahead or supporting aging parents, I’m here to listen, guide, and help you protect what matters most.
Why I Do This Work
I started this practice because I saw how often families were left to navigate loss, court, and confusion without clear guidance. Estate planning shouldn’t be about fear—it should be about love, protection, and honoring the story you’ve built. I believe in planning with heart, and in building long-term relationships with my clients so I can support you at every life stage—not just when you need paperwork.
How I Work
Every plan we create starts with understanding what matters to you. I take the time to listen—about your family, your culture, your goals—and then translate that into a plan that reflects your values and protects your future. I’ll walk you through every step, in English or Spanish, with patience, kindness, and clarity. You’ll never be left feeling unsure or overwhelmed.
Outside the Office
I’m deeply connected to Tucson and the communities I serve. When I’m not helping families plan, I love spending time with mine, participating in cultural events, and staying rooted in the values that guide both my life and my work.

To help Arizona families plan with confidence, protect what matters most, and pass on their legacy with clarity, care, and cultural respect.
How We're Different
Planning for Life, Not Just Paperwork
Traditional estate planning often ends with a binder on a shelf and confusion when it matters most. At our firm, your plan begins with conversation and continues with care. We don’t just prepare documents—we build relationships. You’ll always know what’s in place, what needs updating, and who to call when something changes. With flat fees, no hourly billing, and a full support team to follow through on every detail, you’ll never feel left behind.
Who We Serve
Families Like Yours Deserve a Plan That Fits
Whether you’re building a future, raising children, or caring for parents, we’re here to support every part of your journey.
Married Couples with Children
You’re planning for today and tomorrow. We help you protect your kids, ensure your wishes are honored, and avoid legal confusion down the line.
Blended Families
We understand that blended doesn’t mean complicated—it means extra love, and extra care in planning. We’ll make sure everyone you love is protected.
Single Parents
As the sole decision-maker, your planning matters even more. We’ll make sure your children are raised by the people you trust, with everything they need in place.
Life Partners
Without the legal protections of marriage, planning becomes essential. We help you secure each other’s rights and protect what you’ve built together.
Chosen Families
Families come in all forms. If your most trusted people aren’t listed on a birth certificate or marriage license, we’ll make sure the law sees and respects them.
Second-Generation Families & Immigrant Parents
Whether you’re supporting aging parents or managing cross-generational planning, we offer clear, culturally sensitive guidance in both English and Spanish.
★★★★★
Real stories. Real peace of mind.
Kind Words from Families We’ve Helped
We’re honored to work with families who value love, legacy, and clarity—just like yours. Here’s what some of our clients have shared about their experience:
Very great lawyer and public defender
Jose LozanoAll the above, Yendi is very kind compassionate, good quality of work, professional and responsive. If you come to her you will be taken good care of. She is a 10.
Amanda MarquezMs. Castillo represented my 82 year old father in his attempt to be released based on the compassionate release law. He had been incarcerated for 30 years for a non violent drug crime back in the 80’s. Ms. Castillo was professional, she knew the law, knew what she had to prove, and was Successful in my fathers release. What stood out to me was not only her knowledge of the law, but her communications (and there were many) with me. Every step of the way, she would take my phone calls, return emails and personal texts, that to me, was extremely impressive as lawyers I’ve dealt with in the past never do this. Usually, you will speak with their receptionist or an assistant, not the attorney him or herself. I highly recommend Ms. Castillo as she is a competent , committed attorney. She successfully won this case and gave a man a new life.
Cheryl Clark