Document:

Exhibit 4.49

 

PROMISSARY NOTE

 

	Borrower:	Ehave, Inc. of 277 Lakeshore Road East, Suite 203, Oakville, ON L6J 6J3 (the “Company”)
	 	 
	Lender:	____________of ___________ (the “Lender”)

 

Principal Amount: $________CDN

 

		1.	FOR VALUE RECEIVED, The Borrower promise to pay the Lender at such address as may be provided in writing to the Borrower, the
principal sum of $__________. This note shall rank senior to all
other debt of the Company. This Note is due on April 5, 2019.

		2.	Any time while not in default under this Note, the Borrower may repay the outstanding balance then owing under this Note to
the Lender without further bonus or penalty.

		3.	This Note will be construed in accordance with and governed by the laws of the Province of Ontario.

		4.	This Note will endure to the benefit of and be binding upon the representative heirs, executors, administrators, successors
and assigns of the Borrower and the Lender.

 

IN WITNESS WHEREOF the parties have duly affixed their signatures
under seal on this 28 day of January, 2019.

 

	SIGNED, SEALED AND DELIVERED	Ehave, Inc.
	 	 
	January 28, 2019	 
	 	 
	 	Per ______________________
	 	 
	SIGNED, SEALED AND DELIVERED	__________________
	 	 
	January 28, 2019	 
	 	 
	 	Per ______________________Exhibit 4.50

 

WARRANT CANCELLATION AGREEMENT

 

This LETTER AGREEMENT
(this “Agreement”), dated as of February 27, 2019, is entered into by and among EHAVE, INC., an Ontario
corporation (the “Company”), and ____________(the “Holder”).

 

WHEREAS, the Company
has previously issued to the Holder certain warrants exercisable to acquire an aggregate of __________ common shares of the Company
(collectively, the “Warrants”), as set forth on Schedule I to this Agreement;

 

WHEREAS, the Company
has informed the Holder that the Company intends to enter into agreements with holders of the Company’s notes and warrants,
pursuant to which certain outstanding notes and warrants shall be converted into common shares of the Company (the “Recapitalization”);

 

WHEREAS, upon completion
of the Recapitalization, the Company and the Holder agreed to cancel the Warrants in exchange for issuance ___________common shares
(the “Shares”);

 

NOW THEREFORE, for
good and valuable consideration, the receipt and adequacy of which are hereby acknowledged, the parties agree as follows:

 

1. Cancellation of the Warrants.
In exchange for cancellation of the Holder’s Warrants, upon closing of the Recapitalization, the Holder shall receive the
Shares. The Holder shall surrender its Warrant Certificate, duly endorsed (or a notice to the effect that the original Warrant
Certificate has been lost, stolen or destroyed and an agreement acceptable to the Company whereby the holder agrees to indemnify
the Company from any loss incurred by it in connection with the Warrant Certificate), at the office of the Company. The Company
shall, as soon as practicable thereafter, issue and deliver to the Holder a certificate or agreement representing the Shares pursuant
to this Agreement (bearing such legends as are required by applicable state and federal securities laws in the opinion of counsel
to the Company).The cancellation of the Holder’s Warrants pursuant to this Agreement shall be deemed to have been made at
the closing of the Recapitalization and on and after such date the Holder entitled to receive the securities issuable upon exercise
of the Warrants shall be treated for all purposes as the record holder of such securities and the Holder’s Warrants, and
all obligations of the Company thereunder, shall be deemed to have been indefeasibly satisfied in full.

 

2. Representations and Warranties.
The Holder hereby represents and warrants to the Company, and the Company hereby represents and warrants to the Holder, that (i)
it has the full right, power and authority to enter into this Agreement and to perform its obligations hereunder and the Warrants
as amended by this Agreement, and (ii) the execution of this Agreement by the individual whose signature is set forth at the end
of this Agreement on behalf of such party, and the delivery of this Agreement by such party, have been duly authorized by all necessary
action on the part of such party; and (iii) this Agreement has been executed and delivered by such party and constitutes the legal,
valid and binding obligation of such party, enforceable against such party in accordance with its terms, except as may be limited
by any applicable bankruptcy, insolvency, reorganization, moratorium, or similar laws and equitable principles related to or affecting
creditors' rights generally or the effect of general principles of equity. In addition, the Holder further represents and warrants
that it is the sole record and beneficial owner of the Warrants and that it has not transferred or assigned any of the Warrants,
or any interest therein, to any other person prior to the date hereof.

 

    	 	1	 

     

    

 

2A. Holding Period. The Holder represents
that it has held the Warrants continuously for the prior 12 months and the purchase price for the Warrants has been fully paid
for such 12-month period. For the purposes of Rule 144 promulgated under the U.S Securities Act of 1933, as amended (the “Securities
Act”), the Company acknowledges that the holding period of the Shares may be tacked onto the holding period of the Warrants
and the Company agrees not to take a position to the contrary. In addition, the parties intend for the transactions contemplated
hereby to meet the requirements of Section 3(a)(9) of the Securities Act.  In connection with the foregoing, if required by
the transfer agent to effect removal of a restrictive legend on the certificates or a notation on the book-entry evidencing the
Shares to be sold under Rule 144, the Company shall cause its counsel to issue a legal opinion to the transfer agent to the effect
that the holding period of the Shares may be tacked onto the holding period of the Warrants and that the transfer of Shares pursuant
to Rule 144 does not require registration of such transferred Shares under the Securities Act, provided that the Holder executes
and delivers appropriate representations and documentation the Company’s counsel may reasonably request for such purpose.

 

2B. Post-Recapitalization Percentage
Ownership. Immediately after the issuance of the Shares, the Shares shall consist of ______% of the Company’s capital
stock on a fully diluted basis. At the time of the issuance of the Shares to the Holder, the Company will not have outstanding
any debt or securities that give any rights of anti-dilution or similar adjustments.

 

3. Release. By execution of this
Agreement, upon issuance of the Shares, Holder hereby acknowledges and agrees that Holder forever releases and discharges the Company
from any and all liability arising under the Warrants.

 

4. Counterparts; Execution. This
Agreement may be executed in several identical counterparts all of which shall constitute one and the same instrument. In the event
that any signature is delivered by facsimile transmission or by e-mail delivery of a “.pdf” format data file,
such signature shall create a valid and binding obligation of the party executing (or on whose behalf such signature is executed)
with the same force and effect as if such facsimile or “.pdf” signature page were an original thereof.

 

5. Choice of Law; Forum. This Agreement
shall be construed and enforced in accordance with the laws of the State of New York, without regard to the principles of conflicts
of law thereof. Each party agrees that all legal proceedings concerning the interpretations, enforcement and defense of the transactions
contemplated by this Agreement (whether brought against a party hereto or its respective affiliates, directors, officers, shareholders,
partners, members, employees or agents) shall be commenced exclusively in the state and federal courts sitting in the City of
New York. Each party hereby irrevocably submits to the exclusive jurisdiction of the state and federal courts sitting in the City
of New York, Borough of Manhattan for the adjudication of any dispute hereunder or in connection herewith or with any transaction
contemplated hereby or discussed herein, and hereby irrevocably waives, and agrees not to assert in any action or proceeding,
any claim that it is not personally subject to the jurisdiction of any such court, that such action or proceeding is improper
or is an inconvenient venue for such proceeding.

 

6. Further Assurances. Each of the
parties hereto shall execute and deliver, at the reasonable request of the other party hereto, such additional documents, instruments,
conveyances and assurances and take such further actions as such other party may reasonably request to carry out the provisions
hereof and give effect to the transactions contemplated by this Agreement.

 

[signature page follows]

 

     

     

    

 

IN WITNESS WHEREOF,
the parties hereto have caused this Agreement to be duly executed as of the day and year written above.

 

	THE COMPANY:	 	HOLDER:
	 	 	 
	EHAVE, INC.	 	_____________
	 	 	 	 	 
	By:	 	 	By:	 
	 	Name: Prateek Dwivedi	 	 	Name:
	 	Title:  Chief Executive Officer	 	 	Title:Exhibit 4.51

 

Memorandum
of Understanding

 

THIS MEMORANDUM OF UNDERSTANDING (this
“Agreement”) is dated effective as of February 28, 2019 (the “Effective Date”).

 

BETWEEN:

EHAVE, INC.,

a corporation formed under the laws of the Province
of Ontario

(“Ehave”);

 

- and –

 

DAVID GOYETTE,

an individual residing in the Province of [Ontario]

(the “Executive”);

 

(collectively, the “Parties”)

 

RECITALS:

 

		1.	Ehave and the Executive entered into an executive employment agreement pursuant to which Ehave
engaged the Executive in the position of Chief Technology Officer (the “Employment Agreement”).

 

		2.	Ehave intends to enter into an asset purchase agreement with ZYUS Life Sciences Inc. (“Zyus”)
(the “Asset Purchase Agreement”), pursuant to which, among other things, Ehave will sell a substantial portion
of its assets to Zyus (the “Asset Sale”).

 

		3.	Ehave anticipates having insufficient funds, in the near future, with which to pay the Executive’s
annual salary under the Employment Agreement.

 

		4.	Section 3.06 of the Employment Agreement provides that the Executive is entitled to terminate the
Employment Agreement for whatever reason upon providing two months’ written notice to Ehave and that Ehave is entitled, in
its sole direction, to instead pay the Executive the applicable salary and bonus during such two month period (the “Severance
Payment”).

 

		5.	Section 2.03 of the Employment Agreement provides that, among other things, Ehave will grant the
Executive 365,000 common shares of Ehave upon signing the Employment Agreement and may, in its sole discretion, grant further shares
to the Executive (the “Equity Awards”).

 

		6.	Ehave and the Executive desire to memorialize the terms under which the Executive will release
Ehave from the obligation to pay the Severance Payment and the Equity Awards.

 

NOW THEREFORE, in consideration
of the premises and the mutual agreements herein, and of other consideration (the receipt and sufficiency of which are acknowledged
by each Party), the Parties agree as follows:

 

		1.	RECITALS

 

The foregoing recitals are incorporated
into this Agreement as if separately restated herein.

 

		2.	SEVERANCE TERMS

 

		(a)	Upon the Effective Date, Ehave shall

 

     

     

    

 

		(i)	issue 50,730,997 common shares in the capital of Ehave to the Executive (the “Consideration
Shares”); and

 

		(ii)	not have outstanding any debt or other securities that give any rights of anti-dilution or similar
adjustments to the holders thereof.

 

		(b)	Upon the Effective Date, the Executive shall:

 

		(i)	release any and all rights he may have with respect to any and all stock options or other awards
that have been granted to him by Ehave, including, without limitation, by cancelling the 724,415 options of Ehave that are
held by the Executive; and

 

		(ii)	release Ehave from any and all rights he may have under the Employment Agreement pursuant solely
to Sections 2.03 and 3.06, but, for greater certainty, without derogating from the Executive’s other rights under the Employment
Agreement.

 

		(c)	If the Asset Sale has closed, pay to the Executive from the proceeds thereof, the remainder of his bonus for the year ended
December 31, 2017, being $50,000, less applicable withholdings and deductions.

 

		3.	AMENDMENTS TO EMPLOYMENT AGREEMENT

 

		(a)	Sections 2.03 and 2.06 of the Employment Agreement are hereby deleted in their entirety.

 

		(b)	Section 3.06 of the Employment Agreement is hereby deleted in its entirety, and replaced and restated as follows:

 

3.06 Resignation by Executive.
The Executive shall be entitled to terminate this Agreement and his employment with the Company, at any time and for whatever reason.
The Company shall be entitled, in its sole discretion, to accept such resignation effective immediately, following which, the Company
shall have no other obligations to the Executive other than as expressly provided for in this Agreement.

 

		4.	REPRESENTATIONS AND WARRANTIES

 

The Executive represents,
warrants and acknowledges, to Ehave as follows, and acknowledges that Ehave is relying upon these representations, warranties and
acknowledgments in connection with the purchase of the Consideration Shares:

 

		(a)	the Executive has properly completed, executed the applicable
Exhibits attached hereto, and the information contained therein is true and correct;

 

		(b)	if the Executive is acting as agent for a principal (a
“Disclosed Beneficial Purchaser”), (i) the Executive is duly and validly authorized to enter into this agreement
and all other necessary documentation on behalf of such Disclosed Beneficial Purchaser and (ii) this Agreement has been duly and
validly authorized, executed and delivered on behalf of, and constitutes a valid and legally binding obligation of such Disclosed
Beneficial Purchaser, enforceable in accordance with its terms, subject to customary limitations with respect to bankruptcy, insolvency
or other laws affecting creditors' rights generally and to the availability of equitable remedies;

 

		(c)	the Executive (or, if applicable, the Disclosed Beneficial
Purchaser) is an “accredited investor” as defined under applicable Canadian securities laws and has certified its
eligibility to purchase pursuant to such exemption by completing Exhibit “B”;

 

     

     

    

 

		(d)	if the Executive is relying on paragraphs (j), (k) or (l)
of the definition of “accredited investor”, the Executive has also completed, signed and delivered a Form for Individual
Accredited Investors in the form attached as Exhibit “C” and in so doing, the Executive represents and acknowledges
that Sections 1, 5 and 6 of such form were completed, as applicable, before the Executive completed and signed such form;

 

		(e)	the Executive is purchasing the Consideration Shares as
principal for its own account, not for the benefit of any other person, for investment only and not with a view to resale in the
course of or incidental to a distribution of all or any of the Consideration Shares;

 

		(f)	the Executive acknowledges and confirms that any certificates
representing the Consideration Shares will carry the legend stating substantially the following, as may be revised by Ehave to
comply with applicable securities laws:

 

UNLESS PERMITTED
UNDER SECURITIES LEGISLATION, THE HOLDER OF THIS SECURITY MUST NOT TRADE THE SECURITY BEFORE THE DATE THAT IS 4 MONTHS AND A DAY
AFTER THE LATER OF (I) FEBRUARY 27, 2019, AND (II) THE DATE THE ISSUER BECAME A REPORTING ISSUER IN ANY PROVINCE OR TERRITORY.

 

		(g)	the Executive will provide such additional information
and documents as may be requested in order for Ehave to determine whether the Executive or the Disclosed Beneficial Purchaser,
as applicable, satisfies the indicated category of accredited investor, including in particular those based on income or assets;
and

 

		(h)	the Executive acknowledges and agrees that: (a) Ehave is
required to disclose to the applicable securities regulatory authorities or regulators (the “Securities Authorities”)
certain information pertaining to the Executive, including the Executive's name, residential address, telephone number, number
of Consideration Shares purchased, purchase price therefor, statutory exemption relied on and date of distribution (collectively
“personal information”), that is required to be disclosed in Schedule I of Form 45-106F1 under Canadian Securities
Administrators' National Instrument 45-106 – Prospectus Exemptions (“NI 45-106”), which Form 45-106F1
is required to be filed by Ehave under NI 45-106; (b) the personal information will be delivered to the applicable Securities
Authorities under the authority granted in applicable securities legislation; (c) such personal information is being collected
indirectly by the applicable Securities Authorities under the authority granted to it in securities legislation; (d) such personal
information is being collected for the purposes of the administration and enforcement of the securities legislation of the local
jurisdiction; and (e) the title, business address and business telephone number of the public official in the local jurisdiction
who can answer questions about the Securities Authority's indirect collection of such personal information is indicated in Exhibit
“D” hereto. By executing this Agreement, the Executive hereby authorizes the indirect collection of such personal
information by the applicable Securities Authorities.

 

		5.	Miscellaneous

 

		a)	This Agreement and each of the documents contemplated
by or delivered under or in connection with this Agreement are governed by and are to be construed in accordance with the laws
of the Province of Ontario and the laws of Canada applicable therein and treated in all respects as an Ontario contract. The Parties
hereby irrevocably and unconditionally attorn to the exclusive jurisdiction of the courts of the Province of Ontario and all courts
competent to hear appeals therefrom.

 

		b)	This Agreement shall be binding upon and enure solely
to the benefit of the Parties and their respective heirs, executors, personal legal representatives, successors and permitted
assigns

 

     

     

    

 

		c)	If any term or other provision of this Agreement is invalid, illegal or incapable of being enforced
by any law or public policy, all other terms and provisions of this Agreement shall nevertheless remain in full force and effect
so long as the economic or legal substance of the transactions contemplated hereby is not affected in any manner materially adverse
to a Party. Upon such determination that any term or other provision is invalid, illegal or incapable of being enforced, the Parties
shall negotiate in good faith to modify this Agreement so as to effect the original intent of the Parties as closely as possible.

 

		d)	This Agreement constitutes the entire agreement of the Parties with respect to the subject matter
hereof and supersedes all prior agreements and undertakings, both written and oral, between the Parties with respect to the subject
matter hereof.

 

		e)	This Agreement may not be assigned by any Party.

 

		f)	This Agreement may be executed in one or more counterparts, each of which when executed shall be
deemed to be an original but all of which taken together shall constitute one and the same agreement.

 

		g)	The Executive acknowledges that Ehave has advised the Executive to obtain independent legal advice
with respect to the entry into this Agreement and confirms that he/she has either done so or has knowingly waived his/her right
to do so. The Executive further acknowledges that this Agreement has been entered into by him/her freely and voluntarily and without
duress.

 

[signature page follows]

 

     

     

    

 

IN WITNESS WHEREOF the Parties have
executed this Agreement as of the date first written above.

 

	EHAVE, INC.	 	 
	 	 	 	 
	Per:	/s/ Binyomin Posen	 	/s/ David Goyette
	 	Authorized Signing Officer	 	David Goyette

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