Don Oliver Spagnolo, Business Attorney in South Barrington, Illinois
Over 38 years of legal practice · focused on Business, Estate Planning, and Formation
South Barrington, IL
Practicing business in South Barrington since 1988.
- 38+
- Years practicing
- 2
- Bar admissions
Are you Don Oliver Spagnolo?
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Quick answer
Don Oliver Spagnolo is an attorney based in South Barrington, IL. The practice focuses on Business, Estate Planning, and Formation. Don has over 38 years of legal experience.
- Based in
- South Barrington, IL
- Experience
- over 38 years
- Known for
- Business · Estate Planning · Formation
- Handles Business, Estate Planning, and Formation matters from South Barrington, IL.
- Over 38 years of practice as a licensed attorney.
About Don Oliver Spagnolo: Don Oliver Spagnolo is an attorney based in South Barrington, IL. The practice focuses on Business, Estate Planning, and Formation. Don has over 38 years of legal experience.
Areas of practice
Practice areas handled by Don Oliver Spagnolo
Don concentrates on business, estate planning, formation, m&a, and probate. Each area below outlines the kind of case Don handles, typical outcomes to expect, and how the intake process starts.
Business
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Estate Planning
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Formation
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M&A
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Probate
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Real Estate
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Securities
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Tax
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Consumer
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Business cases in South Barrington, Illinois
Don takes business matters in South Barrington, Illinois. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Don agrees to represent you.
Estate Planning cases in South Barrington, Illinois
Don takes estate planning matters in South Barrington, Illinois. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Don agrees to represent you.
Formation cases in South Barrington, Illinois
Don takes formation matters in South Barrington, Illinois. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Don agrees to represent you.
M&A cases in South Barrington, Illinois
Don takes m&a matters in South Barrington, Illinois. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Don agrees to represent you.
Probate cases in South Barrington, Illinois
Don takes probate matters in South Barrington, Illinois. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Don agrees to represent you.
Biography
About Don Oliver Spagnolo — Over 38 years of Illinois business experience
Don Oliver Spagnolo is an attorney based in South Barrington, IL. The practice focuses on Business, Estate Planning, and Formation. Don has over 38 years of legal experience.
Don Oliver Spagnolo is a lawyer practicing business, corporate & incorporation, mergers & acquisitions and 7 other areas of law. Don has been licensed for 38 years. Don practices in South Barrington, IL.
How Don handles business matters
Don Oliver Spagnolo is a lawyer practicing business, corporate & incorporation, mergers & acquisitions and 7 other areas of law. Don has been licensed for 38 years. Don practices in South Barrington, IL.
Who Don represents
Don reviews new inquiries case-by-case for business, estate planning, and formation matters in South Barrington and the surrounding Illinois area.
Jurisdictions
Don's state bar admissions
Indiana
2025 · ACTIVE
Illinois
1988 · ACTIVE
Locations
Don Oliver Spagnolo's office in South Barrington
Don's primary office is at 33 W Higgins Rd Ste 715, South Barrington, IL, 60010-9103. In-person meetings are by appointment; a phone intake usually comes first.
Client feedback
Client reviews of Don Oliver Spagnolo
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Schedule your consultationHiring guide
How to hire Don Oliver Spagnolo — what to expect in your first consultation
Working with a new business attorney should feel structured. Here's how the first two conversations with Don usually go, from the moment you request a consult to the day representation begins.
Consultation formats and pricing
Don charges for the initial consult. That fee is credited toward representation if you retain Don's office.
What to bring to your first meeting
Bring any documents you already have — police reports, medical records, filed pleadings, correspondence from an insurer, a copy of the contract at issue. If you're not sure, err on the side of bringing everything; Don will tell you what matters and what doesn't.
Questions to ask a business attorney in South Barrington, Illinois
A short list to run through before you commit: How many business matters have you handled in the last year? What's your fee structure? Who else in the office will work on this? What's your realistic estimate of timeline and range of outcomes? How do I reach you between meetings?
Fees & payment
Fees, payment methods, and consultation options for Don
Don discusses fees during intake so the arrangement fits the matter. Contingency, hourly, and flat-fee options are all common in business practice — ask which fits.
Hourly rates, contingency fees, and flat-fee options
Every business matter is priced differently. Simple document review might be a flat fee. Injury litigation is often contingency. Complex commercial disputes usually run hourly with a retainer. Don confirms the model in the engagement letter before any work starts.
Payment methods and payment plans
Don's office accepts standard payment methods. Ask about payment plans if the retainer is a stretch — many business practices work with clients on structured schedules.
Frequently asked
Frequently asked questions about Don Oliver Spagnolo
How much does it cost to hire Don for a business case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Don walks through the likely range during the consult so there are no surprises.
Does Don offer a free consultation?
Don charges for the initial consult; that fee is credited toward representation if you retain Don's office. Some business attorneys offer free consults — check Don's current terms during booking.
How long do business cases in Illinois typically take?
Simple business matters can wrap in a few weeks; disputed cases can run 6–18 months from intake to resolution, longer if the matter goes to trial. Don gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can Don take my case if I'm outside South Barrington?
Don is licensed in Illinois. Matters governed by Illinois law are the natural fit. Out-of-state matters are handled case-by-case, sometimes with local co-counsel. Ask during intake — Don will tell you if the case is a fit or refer you to someone closer to your court.
What should I bring to my first meeting with Don?
Bring every document that touches the dispute: contracts, correspondence, police or medical reports, filed pleadings, invoices, photographs, insurance letters. Also bring a written timeline of what happened, in your own words. Don will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is Don accepting new business clients right now?
Don's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.
Areas served
Business attorneys serving South Barrington, Chicago and Springfield in Illinois
Don handles business matters throughout Illinois. Each city below is a direct link into the search page for verified business attorneys in that community.
More counsel
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If Don's intake is full or the fit isn't right, these business attorneys in South Barrington handle similar matters. Every profile below is verified and open to consultations.





