Atty. John Gregory Sinodis

Atty. John Gregory Sinodis

John Gregory Sinodis is a lawyer practicing business law, business bankruptcy & creditors' rights, corporate law and 1 other area of law. John received a B.S. degree from Arizona State University in 1982, and has been licensed for 40 years.

Phoenix Phoenix 40 yrs experience 40 year
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Business Bankruptcy & Creditors' Rights & More Attorney · Serving Phoenix, AZ · 40+ Years Experience

Profile Summary

About John Gregory Sinodis at a Glance

John Gregory Sinodis is a Member based in Phoenix, Arizona, practicing at Jennings Haug Keleher Mcleod Waterfall Llp. They have 40+ years of legal experience, licensed to practice since 1986. Their practice focuses on business, bankruptcy, and litigation. Admitted to practice in Arizona (1986). Educated at Arizona State University (J.D., 1985) and Arizona State University (B.S., 1982). Recognitions include AV Preeminent. Active member of PROFESSIONAL ASSOCIATIONS & MEMBERSHIPS •State Bar of Arizona, Member •State Bar of California, Member •Maricopa County Bar Association, Member •Equipment Leasing and Finance Association, Member •LEAN: Lease Enforcement Attorney Network, Member. Serves clients in Phoenix, AZ and the surrounding metropolitan area.

Verified attorney profile · Updated October 2026

About John Gregory Sinodis

  • John Gregory Sinodis is a lawyer practicing business law, business bankruptcy & creditors' rights, corporate law and 1 other area of law
  • John received a B.S. degree from Arizona State University in 1982, and has been licensed for 40 years
  • John practices at Jennings Haug Keleher McLeod Waterfall LLP in Phoenix, AZ

Practice Areas Explained

John Gregory Sinodis's Areas of Legal Practice

Each practice area below reflects the types of cases John Gregory Sinodis handles, with a practical overview of what that area of law involves and how it may apply to your situation in Phoenix.

Business & Corporate Law in Phoenix

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

John Gregory Sinodis is one of 497,491 business attorneys indexed nationally. Browse business attorneys in Arizona →

Bankruptcy & Debt in Phoenix

A bankruptcy attorney can help you eliminate debt, stop creditor harassment, and protect your home through Chapter 7 or Chapter 13.

John Gregory Sinodis is one of 104,458 bankruptcy attorneys indexed nationally. Browse bankruptcy attorneys in Arizona →

Civil Litigation in Phoenix

Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.

John Gregory Sinodis is one of 450,750 litigation attorneys indexed nationally. Browse litigation attorneys in Arizona →

Jurisdictional Context

Why Local Counsel Matters in Phoenix

Practicing law in Arizona. Legal matters in Arizona are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Phoenix are typically filed in the local municipal court or the appropriate Arizona state district court, depending on subject matter and amount in controversy. An attorney licensed in Arizona brings working knowledge of local procedural deadlines, judicial practices in this venue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Arizona courts without local counsel or pro hac vice admission.

Phoenix Courts and Legal Process

Choosing a Phoenix-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.

Looking for additional Arizona attorneys? Browse all attorneys in Phoenix or all attorneys in Arizona.

Frequently Asked

Common Questions About John Gregory Sinodis

Where is John Gregory Sinodis's law office located?
John Gregory Sinodis's law practice is located in Phoenix, Arizona. The firm is Jennings Haug Keleher Mcleod Waterfall Llp. You can contact the office directly through this profile page.
What practice areas does John Gregory Sinodis handle?
John Gregory Sinodis focuses on business, bankruptcy, litigation. Each practice area listed reflects experience handling cases of that type in Arizona.
How long has John Gregory Sinodis practiced law?
John Gregory Sinodis has 40+ years of legal experience and has been licensed since 1986.
Where did John Gregory Sinodis go to law school?
John Gregory Sinodis earned their education at (J.D., 1985); (B.S., 1982).
How can I contact John Gregory Sinodis for a consultation?
You can contact John Gregory Sinodis directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.
What awards or recognition has John Gregory Sinodis received?
John Gregory Sinodis's notable recognition includes: AV Preeminent.

Professional Profile

Why Clients in Phoenix Choose John Gregory Sinodis

Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish John Gregory Sinodis's practice in the field of business, bankruptcy, and litigation.

Decade-Tested Legal Experience

John Gregory Sinodis brings 40+ years of hands-on legal practice — enough to have navigated the recurring fact patterns, procedural traps, and negotiation dynamics that shape case outcomes.

Broad Practice Area Coverage

Covering business, bankruptcy, and litigation, John Gregory Sinodis can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.

Local Presence in Phoenix

A Phoenix-based practice means John Gregory Sinodis attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.

Case Types

Common Legal Issues John Gregory Sinodis Handles in Phoenix

Below is a representative sample of the types of matters John Gregory Sinodis has experience with under Arizona law. If your situation involves one of these case categories, this attorney may be well positioned to help you understand your options.

Business formation and structure
Business
Contract drafting and review
Business
Partnership disputes
Business
Merger and acquisition support
Business
Chapter 7 liquidation
Bankruptcy
Chapter 13 repayment plans
Bankruptcy
Debt negotiation
Bankruptcy
Creditor harassment defense
Bankruptcy

This list is illustrative, not exhaustive. Contact John Gregory Sinodis directly to discuss the specifics of your situation.

Search Reference

How People Find John Gregory Sinodis Online

Prospective clients searching for legal help in Phoenix commonly use a combination of the attorney's name and their specific legal need. The following search terms frequently lead people to this profile and to attorneys like John Gregory Sinodis.

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If any of the above matches what you searched for, you've found the right profile. Use the contact options at the top of this page to get in touch with John Gregory Sinodis directly.

John Gregory Sinodis's Practice Areas & Specializations

Education & Law School Background

J.D.
Arizona State University
- 1985
B.S.
Arizona State University
- 1982

Awards & Professional Honors

AV Preeminent

Bar Admissions & Licensed Jurisdictions

Arizona
Admitted: 1986

Client Reviews & Ratings — John Gregory Sinodis

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