Call Us at 917- 579-1871 for Your Free 15-Minute Initial Consultation

Attorney with a Personalized Touch

Providing New York residents with direct access to Attorney Sean B. Oster.  No secretaries, no paralegals, and no long waits! His personalized approach ensures that no pertinent information is lost along the way, and provides clients with the full peace of mind that their concerns are heard.

Contact Us for Your Free 15-Minute Initial Phone Consultation


I strive to make your legal experience as easy and stress-free as possible.

Step 1

Call my office to schedule your free initial consultation or submit your legal matter using our online form below. This will be the first step in gathering information to build a solid strategy.

Step 2

Once my services have been formally retained—I will begin the process of curating all required legal documents.

Step 3

I will keep you updated and informed of your legal paperwork and court filings until case completion.



A Divorce legally dissolves a marriage and releases both parties from the responsibilities of their union. Ensure that you have a trusted attorney on your side to protect your legal rights, represent you in court, and negotiate your custody, visitation, division of property, etc.

Order of Filiation

An Order of Filiation is a court order that must be filed if the paternity of a child needs to be legally confirmed. The order can be filed “on consent” or as part of a Paternity Case. The Order of Filiation is essential for establishing parental rights, such as custody, visitation, and child support.


Spousal Maintenance payments provide ongoing financial support to a spouse after a marriage has been dissolved. Spousal Maintenance is sometimes referred to as alimony, or spousal support, and is awarded in addition to child custody. Standards of living can drastically change after separation or divorce, often leaving one of the two parties financially vulnerable.

Separation Agreement

A Separation Agreement is a written agreement between you and your spouse, regarding custody, maintenance, the division of marital property, etc. Most separation agreements are established during the time of your separation and actual divorce. However, some are designed to be long-term.

Child Support

Child Support is court ordered payments typically made by non-custodial parents to the custodial parent or guardian, to contribute to their child’s needs. Parents have a legal obligation to financially provide for their children. Who is responsible for Child Support will vary dependent upon income levels, and full, shared, or joint custody. My goal is to ensure that fair and reasonable child support is achieved.


Custody is the court ordered legal and/or physical right of one parent over the care, control, and maintenance of their child. Establishing conclusive Legal and Physical Custody is required to protect your rights as a parent, and more importantly, the best interest of your child. Custody Orders are legally complex and exceed full, shared, or joint custody, but also pertaining factors such as physical care, supervision, medical care, religious upbringing, and day-to-day physical care. Child Support will vary depending on income and custody levels. My goal is to ensure that both fair and reasonable Custody and Child Support are achieved.


Clearly defined Visitation Schedules ensure that both children and parents enjoy quality time with one another. Children are often the ones caught in the middle of a failed marriage, and the Law Office of Sean B. Oster is here to advocate for your child’s best interests. Whether the goal is to gain Visitation or change visitation rights—your child’s well-being is the primary goal.

Prenuptial Agreement

From a legal standpoint, marriage is a legally binding contract made between two adults. As a proactive approach to protecting current assets, future earnings, business ventures, property divisions, parental rights, etc., a prenup is required. Your Prenuptial Agreement will ensure that your expectations are clearly defined, and that your assets and interests are protected.

Uncontested Divorce

No Children and No Property


Children with No Property


Property with No Children


Children and Property


Free Consultation


Professional Service


Prompt Service





Class A Misdemeanors

A Class A Misdemeanor is just one step down from a Felony charge. The maximum sentence is up to 12 months in jail and up to a $1,000 fine. Sentencing could also include probation, community service or time in a rehabilitation facility. Class A Misdemeanors can include Public Intoxication, Drug Possession, Shoplifting, Vandalism, Carrying A Gun Without A Permit, Third-Degree Identity Theft, Perjury, And More. Whether you plead guilty or not guilty, hiring a New York Misdemeanor Attorney ensures due process of law and that you have someone negotiating on your behalf.


Reach out to The Law Office of Sean B. Oster to secure quality legal representation!

Class B Misdemeanors

A Class B Misdemeanor carries a maximum sentence of 3 months in jail, and up to a $500 fine—or double the value of the damage or loss. Probation or community service could also be part of sentencing. Class B Misdemeanors can include Public Exposure, Prostitution, Criminal Trespassing, Unlawful Assembly, And More. Whether you plead guilty or not guilty, hiring a New York Misdemeanor Attorney ensures due process of law and that you have someone negotiating on your behalf.

Reach out to The Law Office of Sean B. Oster to secure quality legal representation!  

Unclassified Misdemeanors

An Unclassified Misdemeanor can have a range of legal consequences, varying greatly dependent upon the Ordinance or Law. This could include between 15 days to 12 months in jail, up to 3 years of probation, and community service. Unclassified Misdemeanors can include Reckless Driving, Driving While Intoxicated, Reckless Damage, Disorderly Conduct, Issuing A Bad Check, And More. Whether you plead guilty or not guilty, hiring a New York Misdemeanor Attorney ensures fair and due process of law and that you have someone negotiating on your behalf.


Reach out to The Law Office of Sean B. Oster to secure quality legal representation!

Desk Appearance Ticket (D.A.T.)

A Desk Appearance Ticket (D.A.T.) is a written notice to appear in Court for Arraignment—where criminal defendants are formally advised of their charges and asked to enter a plea. D.A.T’s are often issued after an arrest for a Violation or Misdemeanor instead of being placed in jail. They are occasionally issued for Felonies. A D.A.T. must be taken seriously as it is not a get out of jail free card. The arraignment is only a first appearance in court, and jail time, fines, probation, community service, and more may follow.


Don’t wait until after your D.A.T to hire an attorney. Reach out to The Law Office of Sean B. Oster to secure quality legal representation!

Misdemeanors can include Public Intoxication, Disorderly Conduct, Vandalism, Simple Assault, Drug Possession, and more.


Non-Payment Proceeding
A Non-Payment Proceeding is a means of evicting a tenant for not paying their rent. Landlords cannot legally evict tenants who fail to pay rent without adhering to the Non-Payment Proceedings. If you are a landlord who requires assistance moving forward with an eviction, please contact my law office today.
Evictions/Illegal Lockout
An Eviction allows Landlords the right to terminate a lease before its end date, or to remove an unauthorized tenant. However, Landlords cannot lock out or evict tenants at their volition. Eviction is part of a lengthy legal process, whereby Landlords must file the proper paperwork. I work with landlords to navigate the complex eviction process, and with tenants to ensure that grounds for eviction are sound, checking the formal process has been followed.
Residential and Commercial Leases are rental agreements designed to protect the best interests of both Landlords and Tenants. Landlords and Tenants may establish and negotiate appropriate Lease Provisions, pertaining to multiple aspects of property use and tenancy. If you are a Landlord who wants to ensure that your Lease has the appropriate provisions, or a Tenant who requires assistance negotiating or comprehending their Commercial or Residential Lease, please call me today to discuss your needs.
Holdover Proceeding
Holdover Proceedings are a complex means of evicting a tenant for reasons other than Non-Payment of Rent. This could include lease violations, unauthorized tenants, unauthorized subletting, nuisance complaints, squatting, unauthorized pets, property damage, and illegal activity. If you are a Landlord who would like to evict a Tenant for reasons other than Non-Payment, please reach out today to discuss your Landlord rights.
HP Action
Landlords must provide their Tenants with timely repairs and services, as laid out in your Lease. If a Landlord fails to uphold their responsibility, filing an HP Action will protect your Tenant rights. Landlords must provide you with a habitable residence, meaning the timely resolution of essential repairs is required. If your essential repairs have gone unresolved, an HP action will protect your tenant rights, as established by the State of New York.
Succession Rights
Establishing Succession Rights passes your rent-controlled or rent-stabilized lease along to an assigned successor, but Succession Rights are not guaranteed. When you are ready to move to your next residence, you may want to pass along your lease to your roommates or family members looking for a safe and affordable residence.


Attorney Sean B. Oster

There are many times in life when the need for legal representation will arise, and it is my goal to make such times as stress-free as possible. I am passionate about the law, and here to help you navigate the complicated legal process.

As a boutique law firm, I ensure that each of my clients are of equal priority. My goal is always to identify the best solutions for your individual needs. Whether you are negotiating a Divorce, or protecting your rights as a Landlord or Tenant, or defending yourself in Criminal Court—I will be by your side from start-to-finish.

Call me today at (917) 579-1871 for a free 15-minute initial phone consultation.

The Law Office of Sean B. Oster, P.C.

240 East 79th Street, Suite A
New York, N.Y. 10075
(917) 579-1871

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Disclaimer: The information on this website is for general informational purposes only. Nothing on this website, or emails, or other communications should be taken or construed as legal advice for any individual case, situation, or any subject manner. The information on this website is not intended to create, and receipt or viewing of this information does not constitute or create, an attorney-client relationship. Contacting Mr. Oster solely via phone, contact form and/or email, does not by itself constitute an attorney-client relationship.

Use of our online form does not constitute an attorney-client relationship. In order for you to form an attorney-client relationship with our Law Office both sides would have to sign and execute a Retainer Agreement.

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