Hey Eduardo Blog

Guides for professionals who take privacy seriously.

Deep dives on AI privacy risks, on-device AI technology, and how CPAs, financial advisors, and consultants can use AI safely with client data.

Practice Paperwork

Insurance Denial Codes, Explained in Plain English

PR-204, CO-50, CO-16, PR-31, PI-252, OA-136 and the remark codes beside them, in plain words — with the group code that decides whether you can bill the client, and what to do about each one.

11 min read
Read article →
Mac How-To

Best Private AI Apps for Mac in 2026: 9 Options Compared

LM Studio, Ollama, Jan, GPT4All, Msty, AnythingLLM, Private LLM, Apple Intelligence, and Hey Eduardo, checked against each vendor's own pages: offline behavior, where your data goes, price, work-use terms, and who each one suits.

11 min read
Read article →
Practice Paperwork

Insurance Panel Contracts: What Therapists Should Check Before Signing

Approved for an insurance panel? Before you sign, get the fee schedule and provider manual, then check how rates can change, which codes are paid, how far back payers can recoup, how you exit, and what "all products" and rental network clauses commit you to.

11 min read
Read article →
Practice Paperwork

How to Read and Answer an Insurance Denial in Private Practice

A therapist's guide to insurance denials: what CO-50, CO-16 and CO-197 mean, when a corrected claim beats an appeal, ERISA and Medicare deadlines, parity-law requests, recoupment letters, and a fill-in appeal template.

10 min read
Read article →
For Clinicians

Can Therapists Use ChatGPT? What HIPAA Actually Allows in 2026

Short answer: not with client information on the plans most therapists use. What a BAA is, where OpenAI, Anthropic and Google stand as of September 2026, why removing a name isn't de-identification, and a checklist to use before you paste anything.

8 min read
Read article →
Practice Paperwork

Subpoenaed for Therapy Records? What to Do Before You Send Anything

A subpoena needs a response, but responding isn't disclosing. What HIPAA's subpoena rule, psychotherapy notes, privilege and 42 CFR Part 2 mean for your records, the steps to take this week, and a sample letter to adapt with your attorney.

10 min read
Read article →
Mac How-To

Dyslexia Reading Tools for Adults on a Mac: What Actually Helps

Your Mac can read text aloud, calm a cluttered page, take dictation, and proofread. The exact steps in macOS Tahoe 26, what studies found about dyslexia fonts and spacing, third-party tools and their privacy trade-offs, and tactics for hard documents.

9 min read
Read article →
For Clinicians

APA Guidance on AI for Psychologists: What It Actually Says

APA's 2025 ethical guidance lets psychologists use AI with conditions: consent, bias checks, data security, verified output and human judgment. How it maps to the Ethics Code, what AI scribes change, and a short checklist for solo practice.

9 min read
Read article →
Mac How-To

How to Summarize a PDF on Your Mac Without Uploading It

You don't have to upload a private PDF to get a summary. How to use Apple's built-in Writing Tools, a free local model like Ollama or LM Studio, and Preview's text recognition for scans, plus what cloud chatbots do with your file.

8 min read
Read article →
AI by Profession

AI for Freelance Developers and Agencies: Best Practices for Client Code, NDAs, and IP Protection in 2026

You signed an NDA. Then you pasted client code into ChatGPT to debug it. That's a contract breach. Here's the practical guide to AI workflows for client code — six workflows, three tiers, and sample MSA language to keep you out of trouble.

11 min read
Read article →
AI by Profession

AI for Therapists and Mental Health Professionals: HIPAA-Aware Workflows for Notes, Treatment Planning, and Continuing Education

AI for clinical work, done right. Six HIPAA-aware workflows for therapists and mental health professionals — progress notes, treatment plans, insurance documentation — with the tier system that keeps PHI on your device.

11 min read
Read article →
AI by Profession

AI for Financial Advisors in 2026: Practical Workflows for Client Meetings, Planning, and Compliance

63% of RIAs use AI tools — more than doubled since 2023. But how should financial advisors actually use AI day-to-day? Six workflows with FINRA, SEC Reg S-P, and fiduciary frameworks.

10 min read
Read article →
AI by Profession

AI for Lawyers in 2026: Practical Workflows for Litigation, Document Review, and Client Counseling

79% of legal professionals used AI in 2024, up from 19% a year earlier. After US v. Heppner, how you use it matters more. Six practical workflows for legal work — with the privilege and ethics rules for each.

11 min read
Read article →
AI by Profession

How CPAs Use AI Day-to-Day in 2026: Workflows for Tax Season, Audit Defense, and Advisory Work

AI adoption in accounting firms jumped from 9% to 41% in a year — but what does daily AI use actually look like? Six concrete workflows for tax season, audit defense, and advisory work, with the IRC §7216 compliance rules for each.

11 min read
Read article →
AI by Profession

AI Best Practices by Profession: How Different Industries Are Using AI in 2026

Every profession uses AI in 2026 — but the right way to use it varies dramatically by industry. The pillar guide to AI practices across CPAs, lawyers, financial advisors, therapists, and developers, with deep-dives for each.

13 min read
Read article →
On-Device AI

Local AI Cost Analysis: Break-Even Math vs Cloud APIs (2026)

Local AI on your Mac costs ~$10–30/year in electricity. Cloud AI subscriptions cost $240–360/year per user on standard plans. Here's the honest break-even math — including worked examples for 10-person firms and 50-seat organizations.

10 min read
Read article →
On-Device AI

How to Set Up Ollama on Mac: Complete 2026 Beginner's Guide

Free, open source, no account, no internet needed. From fresh Mac to working local AI in ten minutes — most of which is the model download. Complete walkthrough with the commands you actually need.

8 min read
Read article →
On-Device AI

Best Local LLMs for Mac in 2026: Qwen, Llama, Mistral, DeepSeek Compared

Qwen, Llama, Mistral, DeepSeek, Phi — which open-source model should you actually run on your Mac? Honest 2026 comparison covering quality, speed, RAM requirements, and which is best for which task.

11 min read
Read article →
On-Device AI

Mac Hardware Requirements for Running Local AI in 2026

You don't need a $5,000 workstation. You probably don't even need to upgrade. But unified memory matters more than any other spec — here's the complete hardware guide for local AI on Mac in 2026.

9 min read
Read article →
On-Device AI

Apple Silicon AI Benchmarks: How Fast Is Local AI on M-Series Macs in 2026?

Real-world tokens-per-second benchmarks for local LLMs on every M-series chip from M1 to M5. What 24 tok/s actually feels like, why bandwidth beats TOPS, and how to pick the right Mac for local AI.

8 min read
Read article →
On-Device AI

The Complete Guide to On-Device AI in 2026: Everything Professionals Need to Know

On-device AI runs the model on your computer, not someone else's server. In 2026 it crossed from impressive to practical. The complete guide to what it is, who's adopting it, what you can run on a Mac, and what comes next.

14 min read
Read article →
For Developers

The Developer's Guide to AI Privacy in 2026: How to Code, Research, and Handle Client Work Without Leaking Anything

Since April 2026, GitHub trains on Copilot Free, Pro and Pro+ interaction data unless you opt out. Cursor had seven CVEs in 2025. Most developers don't realize they have two different AI privacy problems — and they need two different solutions. Here's the complete stack for coding, document analysis, and client work without leaking anything.

16 min read
Read article →
How-To Guides

How to Use AI With Client Data in 2026: A Step-by-Step Compliance Guide for Professionals

In January 2026, insurers could start attaching a new generative AI exclusion to liability policies. FINRA flagged agent-based AI risks. And in US v. Heppner, a court held a defendant's consumer AI chats were not privileged. Here's the complete how-to for using AI with client data without breaking compliance, privilege, or your insurance.

14 min read
Read article →
Tax Practice

The Complete Guide to AI for Tax Professionals in 2026: Tools, Time Savings, and Compliance Rules

AI adoption in accounting firms jumped from 9% to 41% in a single year. But most professionals are using these tools without a compliance framework — and the risks range from IRC §7216 violations to loss of privilege. Here's the complete picture.

13 min read
Read article →
AI Technology

On-Device AI vs Cloud AI: The Complete Guide for Professionals Who Handle Sensitive Data (2026)

Not all AI is the same. Cloud AI requires your data to travel to a third-party server. On-device AI runs entirely on your hardware. For CPAs, attorneys, and financial advisors, this architectural difference determines your entire compliance posture.

10 min read
Read article →
Privacy & Compliance

The Hidden Legal Risk: Why Using ChatGPT for Client Work Could Expose You to Liability in 2026

In February 2026, a federal court held that documents a defendant created with a consumer AI platform were not protected by attorney-client privilege. Here's what that means for every professional who handles confidential client data.

11 min read
Read article →