# The X Office > A real commercial address at 150 SE 2nd Ave in Downtown Miami — professional and private. Sunbiz-ready, with USPS Form 1583 included. ## Pages - [Home](https://thexoffice.com/): A real commercial address at 150 SE 2nd Ave in Downtown Miami — professional and private. Sunbiz-ready, with USPS Form 1583 included. - [About](https://thexoffice.com/about): The team in Miami running the address, the mail, and the phone line behind The X Office. - [Services](https://thexoffice.com/services): Virtual office, mailbox, mail scanning, mail forwarding, and receptionist at 150 SE 2nd Ave, Downtown Miami. One address, five services. - [Pricing](https://thexoffice.com/pricing): Three monthly plans with a real Downtown Miami business address, mail handling, and scanning. No minimum contract. - [How we work](https://thexoffice.com/how-we-work): The six steps from signing up to a working address: business details, identity validation, Form 1583 on a video call, and your PMB number. Most accounts are active in one to five business days. - [Contact](https://thexoffice.com/contact): Reach a real person in Downtown Miami. Email within four business hours, or call our local 786 number during office hours. - [Blog](https://thexoffice.com/blog): Notes on virtual offices, Miami addresses, and the compliance details that matter. - [Guides](https://thexoffice.com/guides): Step-by-step walkthroughs for Form 1583, banking acceptance, LLC privacy, and US compliance. - [Authors](https://thexoffice.com/authors): The people behind The X Office. ## Services - [Virtual office in Downtown Miami.](https://thexoffice.com/services/virtual-office): A real commercial business address in Downtown Miami. Use it for your current business or use it to register a new company on Sunbiz. - [Virtual Mailbox in Miami — receive, scan, decide](https://thexoffice.com/services/virtual-mailbox): A real Downtown Miami mailbox with mail scanning, forwarding, and Form 1583 authorization handled in-house. Not a P.O. Box. Not a shared inbox. - [Mail scanning for your Downtown Miami commercial mail address.](https://thexoffice.com/services/mail-scanning): Every envelope addressed to your virtual office scanned within one business day and posted to a private dashboard you can open from anywhere — from USD per month. - [Mail forwarding from Miami to your country](https://thexoffice.com/services/mail-forwarding): We pick up your mail at our Downtown Miami commercial mail address, consolidate it into one parcel, and ship it home. Pass-through postage. No surprise upcharges. - [Bilingual Virtual Receptionist](https://thexoffice.com/services/virtual-receptionist): A bilingual receptionist answers your dedicated business line during business hours, takes messages, and transfers calls as needed. ## Blog - [4 Hidden Pains of a Virtual Office (And the Fix Before You Sign)](https://thexoffice.com/blog/4-hidden-pains-of-a-virtual-office): Form 1583 not validated, online banks rejecting the address, Sunbiz exposing your home, FinCEN BOI surprises — the four gaps a generic virtual-office plan leaves open, and what to look for instead. - [Your Bank Closed the LLC Account — Now What](https://thexoffice.com/blog/close-non-resident-llc-bank-account): A non-resident owner's response playbook when an online bank sends a closure notice — the response window, the appeal file, alternative banks, and the address moves you must make at Sunbiz. - [CMRA vs Reseller vs PO Box for a Non-Resident LLC](https://thexoffice.com/blog/cmra-vs-aggregator-vs-po-box): The three physical-mail options a non-resident LLC owner can pick — and why only one of them satisfies Sunbiz, USPS Form 1583, and a non-resident-friendly bank account at the same time. - [Form 1583 with a Foreign ID: What Actually Passes USPS Review](https://thexoffice.com/blog/form-1583-with-foreign-id): Which non-US IDs USPS accepts on Form 1583, the country-by-country second-ID combos that work, and the rejection patterns that cost non-residents weeks of delay. - [Held Funds After Closure — How Long, Why, and How to Get Them Released](https://thexoffice.com/blog/held-funds-after-account-closure): When a US bank closes your non-resident LLC account, balances enter a holding period. The legal basis, how long it lasts, what triggers release, and the tax reporting that lands on the release itself. - [Non-Resident LLC IRS Taxes (2026 Compliance)](https://thexoffice.com/blog/non-resident-llc-irs-taxes): What the IRS actually requires from a non-resident-owned single-member LLC — EIN, Form 5472, Form 1120 pro-forma, W-8BEN-E, and the BOI report you cannot skip. - [Validate Form 1583's Signature Step by Step (from Abroad, 2026)](https://thexoffice.com/blog/notarize-form-1583-step-by-step): How to complete USPS Form 1583's signature step from your kitchen table in Bogotá or Mexico City, directly with your CMRA — accepted IDs, no outside notary, what USPS rejects. - [Online Bank Comparison for US LLCs — A Categorical 2026 Guide](https://thexoffice.com/blog/online-bank-comparison-for-us-llcs): Compare the categories of online banks that onboard non-resident LLCs in 2026 — eligibility, address rules, fees, debit cards, and how each handles operational-presence reviews. - [PO Box vs Virtual Mailbox: What Actually Works for a US LLC](https://thexoffice.com/blog/po-box-vs-virtual-mailbox): USPS PO Boxes and virtual mailboxes look interchangeable in ads, but only one passes Sunbiz, Form 1583, and online-bank KYC. The four tests that separate them, and when each is the right call. - [Protect Your Home from Florida Public Records](https://thexoffice.com/blog/protect-your-home-from-public-records): A privacy playbook for non-resident LLC owners: how Florida's Public Records Act exposes your address, the three setup options, and why the commercial address and the registered agent are two separate contracts. - [Register a Miami LLC Step by Step (2026 Sequence)](https://thexoffice.com/blog/register-a-miami-llc-step-by-step): The exact sequence to form a Florida LLC with a Miami address — from Sunbiz filing to EIN to mail activation — without flying to the US. - [Registered Agent vs Virtual Office: two different addresses](https://thexoffice.com/blog/registered-agent-vs-virtual-office): A registered agent address and a virtual office address answer different questions for the same Florida LLC. What each one covers, why one does not replace the other, and which of the two The X Office provides. - [Start a US Business with a Virtual Office (Miami, 2026)](https://thexoffice.com/blog/start-a-us-business-with-a-virtual-office): Why a Miami virtual office is the foundation for a non-resident US LLC — legal address, USPS-grade mail handling, registered-agent fit, and bank-ready paperwork. - [Start a US LLC from Colombia — The 2026 Non-Resident Path](https://thexoffice.com/blog/start-a-us-llc-from-colombia): Colombian founders forming a Florida LLC in 2026 — Sunbiz, EIN without SSN, Form 1583, banking, and the DIAN + DCIN-83 reporting most guides ignore. - [Start a US LLC from Mexico — The 2026 Non-Resident Path](https://thexoffice.com/blog/start-a-us-llc-from-mexico): Mexican founders forming a Florida LLC in 2026 — Sunbiz, EIN without SSN, Form 1583, banking, and the SAT residencia-fiscal layer most guides ignore. - [Sunbiz Public Address Exposure — What a Real Florida LLC Record Reveals](https://thexoffice.com/blog/sunbiz-public-address-exposure): Walk through a live Sunbiz search of a Florida LLC. See exactly which addresses are public, why scrapers republish them within days, and how a commercial address closes the exposure before it starts. - [Virtual vs Personal Address for Your LLC: The Distinction Founders Miss](https://thexoffice.com/blog/virtual-vs-personal-address): The LLC's legal address is not your home address. Mixing them up gets you bounced at Sunbiz, at the bank, and at USPS. Here is the right setup. ## Blog categories - [Banking](https://thexoffice.com/blog/category/banking): Articles in the Banking category. - [Form 1583](https://thexoffice.com/blog/category/form-1583): Articles in the Form 1583 category. - [Privacy](https://thexoffice.com/blog/category/privacy): Articles in the Privacy category. - [LLC Formation](https://thexoffice.com/blog/category/llc-formation): Articles in the LLC Formation category. - [Taxes](https://thexoffice.com/blog/category/taxes): Articles in the Taxes category. - [Non-Resident](https://thexoffice.com/blog/category/non-resident): Articles in the Non-Resident category. - [Mail Handling](https://thexoffice.com/blog/category/mail-handling): Articles in the Mail Handling category. - [Virtual Office](https://thexoffice.com/blog/category/virtual-office): Articles in the Virtual Office category. ## Guides - [USPS Form 1583: Step-by-Step Guide for Non-Residents (2026)](https://thexoffice.com/guides/form-1583): Authorize USPS to deliver mail to a Miami virtual office: form, IDs, remote video signature validation, and the mistakes that delay non-resident applications. - [Banking Acceptance for Non-Residents: The 2026 Address-and-Presence Guide](https://thexoffice.com/guides/banking-acceptance): What online banks for non-residents really evaluate on your LLC file: legal address vs personal address, the 2025 operational-presence rule, account-closure pattern. - [US LLC for Non-Residents: Address, EIN, Bank — 2026 Walkthrough](https://thexoffice.com/guides/for-non-residents): Form a US LLC from abroad without a visa: real commercial address, EIN without SSN, and an online bank that accepts non-residents. 2026 requirements. - [Sunbiz Privacy: Keep Your Home Address Off Florida's Public LLC Record (2026)](https://thexoffice.com/guides/sunbiz-privacy): Florida's sunbiz.org publishes every LLC address by name. Use a commercial address before you file — or rewrite it now — to keep your home off the public record. - [Form 1583 Signature Validation: How Non-Residents Sign From Home (2026)](https://thexoffice.com/guides/form-1583/notarization): Complete USPS Form 1583's signature validation from your country by video, directly with your CMRA. No outside notary, no online notarization platform. IDs, session walkthrough, common errors. - [Form 1583: The 5 Mistakes That Get Non-Resident Applications Rejected](https://thexoffice.com/guides/form-1583/common-mistakes): The five recurring errors that delay USPS Form 1583 approval for non-residents — residential vs PMB, expired ID, signature, booking an unnecessary notary, in-person myth — with the fix for each. - [Why Online Banks Are Closing Non-Resident LLC Accounts in 2025 — and How to Avoid It](https://thexoffice.com/guides/banking-acceptance/account-closures): The 2025 closure pattern at online banks for non-residents: operational-presence requests months after opening, funds held, short response windows. What to prepare from day one. - [US LLC for Colombian Entrepreneurs: Apostille, ITIN, DIAN — 2026](https://thexoffice.com/guides/for-non-residents/colombia): Form a US LLC from Colombia: apostille via Cancillería, ITIN through a CAA in-country, DIAN reporting. The Colombia-specific layer on top of the non-resident framework. - [US LLC From Mexico: Apostille SRE, ITIN, SAT Reporting (2026)](https://thexoffice.com/guides/for-non-residents/mexico): Form a US LLC from Mexico in 2026: apostille via SRE, ITIN through CAA-México, EIN from a Mexican address, and SAT reporting in plain English. ## Authors - [Fernando Brierley](https://thexoffice.com/authors/fernando-brierley): Co-founder - [Sebastian Balmaceda](https://thexoffice.com/authors/sebastian-balmaceda): Co-founder - [The X Office](https://thexoffice.com/authors/the-x-office): Institutional byline ## Locations - [Our Downtown Miami Building — 150 SE 2nd Ave](https://thexoffice.com/locations/florida/miami-dade/miami/downtown-miami): A real office in the heart of Downtown Miami's central business district, steps from Metromover stations, with a secure, USPS-authorized commercial mailroom. ## Legal - [Privacy Policy — The X Office](https://thexoffice.com/privacy): How we collect, use, and protect your data. CCPA + CPRA + FIPA aligned. Last updated May 2026. - [Terms of Service — The X Office](https://thexoffice.com/terms): Our terms for using the virtual office, mailbox, and mail-handling services. Florida governing law, FAA arbitration. Last updated May 2026. - [Fair Usage Policy — The X Office](https://thexoffice.com/fair-usage-policy): How our Unlimited mail handling and scanning works in practice: normal business use, the guideline volumes, and what happens if usage is exceptional.