About Let’s Be Marketing

Let’s Be Marketing is a strategy-first marketing agency in Miami, run by its two founders, Alia Seffar and Delmer Lagos, for businesses in the US, Canada, Europe, Morocco and the Caribbean. We build websites, local SEO, content, social media, ads and CRM automations in English, Spanish and French, and you talk to the founders from the first call on.

Alia Seffar and Delmer Lagos, founders of Let's Be Marketing

Why we built it this way

We don’t sell services just to sell them. Before we recommend anything, we learn your business, your goals, your challenges, your budget and what’s already working. Sometimes the answer is ads; sometimes it’s a better website, stronger follow-up or better use of the tools you already have.

We work as your partner, not as one more vendor: we take on new clients selectively, we recommend only what fits your business, and the founders stay involved in every account.

How we work

Five steps, in this order.

  1. Diagnose

    We look at your website, your offer, where your customers come from and where they drop off, before you spend another dollar.

  2. Recommend

    We tell you what to do first and why, in writing: sometimes ads, sometimes a better website, faster follow-up or the tools you already have.

  3. Build

    Pages, forms, the CRM and the texts and emails that follow up on their own, so every lead is captured, tracked and answered.

  4. Acquire

    Ads, local search and content that bring the right people in, measured and tested so they get cheaper over time, not more expensive.

  5. Scale

    More budget where it pays, more channels and more automation, and campaigns that bring past customers back.

Real people. Real strategy. Real relationships.

Meet the founders behind Let’s Be Marketing. We’re Alia Seffar and Delmer Lagos, bringing together over a decade of combined digital marketing and business consulting experience. Alia’s background spans strategic communications, digital marketing, advertising, websites and brand strategy across industries and international markets. Delmer brings business consulting, management, customer relationships and AI-driven initiatives, connecting marketing strategy to practical business operations. Together we built an agency that treats your business like a partnership, not another account.

  • Alia Seffar, co-founder of Let’s Be Marketing

    Alia Seffar

    Co-founder

  • Delmer Lagos, co-founder of Let’s Be Marketing

    Delmer Lagos

    Co-founder

Limited spots. Direct access to the founders.

We take on a limited number of new clients each month, so you work with the founders from the first call through every strategy and performance review, with a specialist team behind us.

What our ads have brought in

  • 35 ad accounts in our results, from plumbing to jewelry
  • $8.07M in revenue from $714,782 in ads
  • 11.3X return on the ad spend, as the platforms report it

See every account

The company behind the name

Phone
(786) 305-8642
Email
hello@letsbemarketing.com
Languages
English, Spanish and French
Clients
United States, Canada, France, Morocco, Spain, Portugal, Bermuda and the Bahamas
  • United States
  • Canada
  • France
  • Morocco
  • Spain
  • Portugal
  • Bermuda
  • The Bahamas
“More importantly, it converts.”
Tony B., recruitment firm, on Google

5.0 on Google

From 10 reviews

Read all our reviews
  • “I was honestly exhausted trying to find someone reliable for my website. Working with Alia was a breath of fresh air: professional, clear, responsive, and delivered exactly what she said she would.”

    Kenneth F. January 2026

  • “Alia really knows how to alleviate the anxieties that come with sophisticated SMS and SEO planning. She’s super organized, even pushing our team to align around set goals for marketing.”

    Keerome M. November 2025

  • “Kind and knowledgeable. Helped my business to be active and have ads on Google. She was very patient with us during this process. Highly recommend!”

    Rafaela V. November 2025

  • “Absolutely outstanding work. The design is sharp, the structure is intuitive, and she understands exactly what you’re trying to express.”

    Mohamed M. November 2025

  • “She helped my business get set up in London, and we did a marketing consultation to optimise my marketing efforts and budgets. Highly recommend!”

    Beth F. November 2025

  • “Very happy with Alia’s work! Very professional and skillful at navigating the issues with good energy.”

    Thiago C. November 2025

Free 20-minute
call

  • We look at how customers find you and how fast you answer
  • You leave with a plan and a price
  • In English, Spanish or French

We tell you on the call if we’re a fit. If we’re not, you keep the advice.

Step 1 of 4