EXHIBIT 10.19.1

GUARANTY

SUBLEASE GUARANTY (the “Guaranty”) dated as of April 4, 2006 made by HUDSON
HOLDING CORP., a Delaware corporation (“Guarantor”), having an address at 111
Pavonia Avenue, Jersey City, New Jersey 07310, to and in favor of CHARLES
SCHWAB & CO., INC., 101 Montgomery Street, San Francisco, California 94104
(“Sublandlord”).

R E C I T A L S:

A. Unless the context otherwise requires, all capitalized terms used herein
without definition shall have the meanings provided in the Sublease by and
between Sublandlord, as sublandlord, and HUDSON SECURITIES, INC., as subtenant
(together with its successors, transferees and assigns, “Subtenant”), dated as
of the date hereof, pursuant to which Sublandlord leased certain premises (the
“Premises”) to Subtenant (as it may be amended, the “Sublease”).

B. Guarantor, as sole shareholder of Subtenant, has a financial interest in
Subtenant.

C. Sublandlord is unwilling to enter into the Sublease of the Premises unless
Guarantor executes and delivers this Guaranty.

NOW, THEREFORE, in consideration of the benefits expected to accrue, directly or
indirectly, to Guarantor by reason thereof, and for other good and valuable
consideration, the receipt and sufficiency of which is hereby acknowledged,
Guarantor, intending to be legally bound, hereby represents and warrants to, and
covenants and agrees with, Sublandlord, and its successors and assigns as
follows:

1. Guarantor hereby irrevocably and unconditionally guarantees to Sublandlord,
its successors and assigns full and punctual payment and performance of all the
terms, covenants and conditions (monetary or nonmonetary) to be paid or
performed by Subtenant under the Sublease (the “Guaranteed Obligations”).
Guarantor confirms that this Guaranty constitutes an absolute, unconditional,
present and continuing guaranty of payment and not collection.

2. All payments made by Guarantor under this Guaranty shall be made in lawful
money of the United States of America in funds immediately available to
Sublandlord at its address above, or at such other place as Sublandlord may
hereafter designate in writing. The provisions of this paragraph shall survive
the termination of the Sublease.

3. Guarantor hereby waives notice of acceptance of this Guaranty by Sublandlord
and of any liability to which it may apply, and notice or proof of reliance by
Sublandlord upon this Guaranty. Guarantor waives presentment, demand of payment,
protest, notice of dishonor or nonpayment of the Guaranteed Obligations, suit or
taking other action or making any demand against, and any other notice to, any
party liable thereon (including Guarantor).

4. The obligations and liability of Guarantor for the Guaranteed Obligations and
otherwise under this Guaranty shall not be released, impaired, diminished,
modified or otherwise affected by any event, condition, circumstance, action or
failure to act, with or without notice to, or the knowledge or consent of,
Guarantor, including but not limited to (a) any amendment,

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renewal, extension, compromise, settlement, adjustment or modification of or
addition or supplement to the Sublease, or any obligation or liability under the
Sublease, it being agreed that this Guaranty shall extend to the Guaranteed
Obligations as they may be so amended, renewed, extended, diminished, reduced or
otherwise changed; (b) any extension of time granted by Sublandlord to
Subtenant, or any dealings or transactions occurring between them, whether or
not notice thereof is given to Guarantor; (c) any sublease, assignment,
conveyance, merger or other transfer, voluntarily or involuntarily (whether by
operation of law or otherwise), of all or any part of Subtenant’s interest in
the Sublease or any assumption by any party of any obligation or liability of
Subtenant under the Sublease; (d) any waiver, consent, forbearance, failure to
make any claim, action or inaction of Sublandlord in enforcing any obligations
of Subtenant, Guarantor or any other person or entity in connection with the
Sublease; (e) any bankruptcy, insolvency, reorganization, arrangement,
liquidation or similar or dissimilar proceeding involving Subtenant or the
Sublease, including, without limitation, any termination or rejection of the
Sublease in connection with any such proceedings, or discharge of any of
Subtenant’s liabilities or obligations thereunder; it being agreed, without
limiting the generality hereof, that any limitation on the liabilities or
obligations of Subtenant in any such proceeding, whether or not arising out of
any statutory limitation, such as contained in Section 502(b)(6) of the
Bankruptcy Code, or any equitable considerations shall not diminish or limit the
liability of Guarantor; (f) any disability or other defense of Subtenant; or
(g) any other circumstance which may give rise to a discharge, limitation or
reduction of liability of a guarantor, other than actual payment and performance
to the extent the same results in a reduction of liability.

5. Guarantor acknowledges and confirms to Sublandlord that it has not been
induced to execute and deliver this Guaranty as a result of, and is not relying
upon, any representations, warranties, agreements or conditions, whether
express, implied, written or oral, by Sublandlord.

6. The validity of this Guaranty and the obligations of Guarantor hereunder
shall not be terminated, diminished or impaired by reason of the assertion or
failure to assert by Sublandlord against Subtenant, any guarantor, or their
successors and assigns, of any of the rights or remedies of Sublandlord pursuant
to the provisions of the Sublease or hereunder.

7. For the benefit of Sublandlord and Subtenant and to the fullest extent
permitted by law, Guarantor irrevocably and unconditionally waives all rights of
subrogation, reimbursement, indemnification, contribution or similar rights
against Subtenant or its assets (arising by contract, by law or otherwise) as a
result of this Guaranty, including, without limitation, payment or performance
of the Guaranteed Obligations. Guarantor shall not assert any such right at any
time in respect of the Sublease or any other obligation that is secured by
collateral securing the Sublease until the Guaranteed Obligations are satisfied
in full. Sublandlord’s rights hereunder are such that the remedy of law for
breach would be inadequate, and Sublandlord shall be entitled to specific
performance and enforcement thereof, including, without limitation, imposition
of a restraining order or injunction. Nothing herein shall diminish or relieve
any of Subtenant’s liabilities to Sublandlord. Sublandlord, Subtenant and their
respective successors and assigns are intended third party beneficiaries of the
waivers and agreements made herein and their rights hereunder shall survive
payment and performance of Subtenant’s obligations under the Sublease.

 

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8. Guarantor hereby represents and warrants, which shall survive the execution
and delivery of this Guaranty: (a) Guarantor has examined the Sublease and all
instruments referred to therein, and Subtenant’s representations and warranties
set forth therein are true and correct; (b) Guarantor has all necessary power,
authority and legal right to execute, deliver and carry out the terms this
Guaranty; (c) This Guaranty is a valid, legal and binding obligation of
Guarantor, enforceable in accordance with its terms except as enforcement may be
limited by bankruptcy, insolvency or other similar laws affecting the
enforcement of creditors’ rights generally insofar as such laws apply to the
bankruptcy or insolvency of Guarantor; (d) Neither the execution and delivery of
this Guaranty nor the consummation of the transactions herein contemplated, nor
compliance with the terms hereof, will contravene any provision of law, statute,
rule or regulation to which Guarantor is subject or any judgment, decree,
franchise, order or permit applicable to Guarantor, or will conflict with, or
result in any breach of, or result in the imposition of any lien, security
interest or other encumbrance upon any of the properties or assets of Guarantor
pursuant to, the terms of any indenture, mortgage, agreement or other instrument
to which Guarantor is a party or by which Guarantor or any of Guarantor’s
property or other assets may be subject; (e) No consent or approval of any
governmental or public body or any other party is required to authorize the
execution, delivery and performance of this Guaranty.

9. An “Event of Default” shall exist if; (a) any warranty or representation by
Guarantor contained herein or any other writing delivered in connection herewith
or the Sublease is false or misleading in any material respect; or (b) Guarantor
fails to observe or perform any covenant or agreement contained herein and such
failure shall continue for 15 days after written notice thereof; or
(c) Guarantor shall (i) apply for or consent to the appointment of a receiver,
trustee, liquidator or custodian for Guarantor or its property, (ii) admit in
writing Guarantor’s inability to pay or fail to pay Guarantor’s debts generally
as they become due, (iii) make a general assignment for the benefit of
creditors, (iv) be adjudicated a bankrupt or insolvent, (v) commence a voluntary
case under the bankruptcy or insolvency laws of any jurisdiction, federal or
state, domestic or foreign, or file a voluntary petition or answer seeking
liquidation, reorganization, arrangement with creditors or an order for relief
or seeking to take advantage of any insolvency law or file an answer admitting
the material allegations of a petition filed against Guarantor in any
bankruptcy, liquidation, reorganization or insolvency proceeding, or action
shall be taken by Guarantor for the purpose of effecting any of the foregoing,
or (vi) if without Guarantor’s approval, a proceeding shall be instituted in any
court of competent jurisdiction, under any law relating to bankruptcy,
insolvency, liquidation, reorganization or relief of debtors, seeking in respect
of Guarantor, an order for relief or an adjudication in bankruptcy, liquidation,
reorganization, dissolution, winding up or arrangement with creditors, or the
appointment of a trustee, receiver, liquidator or custodian or the like of
Guarantor, or of all or any substantial part of its assets, or other like relief
in respect thereof under any bankruptcy or insolvency law, and, the same shall
continue undismissed for any period of ninety (90) consecutive days.

10. Upon an Event of Default, Sublandlord (A) may declare the liabilities and
obligations of Subtenant to Sublandlord, whether or not due, to be immediately
due and payable or otherwise due hereunder as to Guarantor, and/or (B) shall
have the right to proceed directly against Guarantor under this Guaranty without
proceeding against Subtenant or any other person or entity or exhausting any
other remedies which it may have and without resorting to any security held by
Sublandlord. Each breach or default hereunder and under the Sublease shall give
rise to a separate cause of action hereunder, and separate suits may be brought
hereunder as each cause of action arises, but nothing herein shall preclude
Sublandlord from accelerating obligations or pursuing any other remedy provided
under the Sublease upon the occurrence of any default thereunder beyond any
applicable grace period.

 

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11. Any notice, demand or other communication to Guarantor or Sublandlord
hereunder shall be in writing and given to such party at its address set forth
above, or such other address as such party may hereafter specify by notice to
the other party. Each such notice or other communication shall be deemed to have
been duly given if given by personal delivery or nationally recognized overnight
courier, when so delivered or delivery refused.

12. No waiver, modification, amendment or discharge of this Guaranty shall be
effective unless the same shall be in a writing, duly signed by Sublandlord.
Each such waiver shall apply only with respect to the specific instance involved
and shall not impair the rights of Sublandlord or the obligations of Guarantor
to Sublandlord in any other respect at any other time or instance.

13. This Guaranty is being delivered in the State of New Jersey, and the
respective rights and obligations of Sublandlord and Guarantor hereunder shall
be governed by and construed and enforced in accordance with the internal
substantive laws of the State of New Jersey applicable to contracts made and to
be performed entirely within said State, without reference to choice or conflict
of laws principles or provisions which might be otherwise applicable, and
Guarantor hereby irrevocably submits and consents to the jurisdiction of any
such court over the person of Guarantor and hereby waives (a) any claim against
Sublandlord for consequential or special damages and (b) any claim that any such
court is an inconvenient forum and any objection to the laying of venue in any
such court and (c) personal service of any summons and complaint. Guarantor
consents to the service upon it of process in any such action or proceeding by
mail to Guarantor at the address set forth for Guarantor in the first paragraph
hereof. In any such action, (i) Guarantor shall be liable for all reasonable
out-of-pocket costs and expenses of enforcement incurred by Sublandlord
including, without limitation, reasonable attorneys’ fees, and (ii) Guarantor
shall not interpose any counterclaim except with respect to the claims Guarantor
would be barred from instituting in a separate action. Guarantor agrees that a
final unappealable judgment in any such action, suit or proceeding shall be
conclusive and may be enforced in other jurisdictions by suit on the judgment or
in any other manner provided by law. Nothing herein shall (i) preclude
Sublandlord from initiating any such action in any other appropriate forum or
jurisdictions, whether concurrently or not, or (ii) preclude any other method of
effecting services of process. Guarantor hereby consents to the giving of any
relief or the issue of any process in connection with any such action including,
without limitation, the making, enforcement or execution against any property
whatsoever of any order or judgment which may be made in such action.

14. If any part of this Guaranty is determined to be unenforceable, the
remainder of this Guaranty shall continue in full force and effect. Any
provision hereof which is unenforceable in any jurisdiction shall, as to such
jurisdiction, be ineffective to the extent of such unenforceability without
invalidating the remaining provisions hereof, and any such unenforceability in
any jurisdiction shall not render unenforceable such provision in any other
jurisdiction.

15. This Guaranty shall be binding upon Guarantor and its respective successors
and assigns, and shall inure to the benefit of Sublandlord and its respective
successors and assigns.

 

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16. GUARANTOR, AND SUBLANDLORD BY ITS ACCEPTANCE HEREOF, HEREBY WAIVE TRIAL BY
JURY IN ANY ACTION, PROCEEDING OR COUNTERCLAIM BROUGHT BY EITHER OF THE PARTIES
HERETO AGAINST THE OTHER AS TO ANY MATTERS ARISING OUT OF OR CONNECTED WITH THIS
GUARANTY, THE RELATIONSHIP OF SUBLANDLORD AND GUARANTOR OR ANY OTHER CLAIMS OR
STATUTORY REMEDY.

IN WITNESS WHEREOF, Guarantor has caused this Guaranty to be duly executed and
delivered as of the date first above written.

 

WITNESS:     GUARANTOR:     HUDSON HOLDING CORP. LOGO [g47742sig-2.jpg]     By:
  LOGO [g47742sig-1.jpg]       Name:   [Illegible]       Title:   CEO/CHAIRMAN

 

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