"ASSIGNMENT.Tenant agrees to not sublet said premises, nor assign this agreement, nor any part thereof without prior written consent of Landlord.

Each of them has the right to sell or partition their portion of interest without the consent of the other two.  

As such, you need consent of both spouse to sell it or partion your portion before you are separated. 

Here's an excerpt from mine: (b) Locks may not be altered nor may new locks, bolts, or other door or window attachments be installed without our prior written consent. 

So, to summarize:Very loud and disruptive tenant (domestic disputes in nature).Potentially has one to multiple people not on the lease living there now.Defensive and unapologetic behavior when I speak to her.Pays on time.I have a lease with her that ends June 30th.The lease mentions Household Size and that any adults, or otherwise, living there apart from the tenant can only be allowed to live there by the written consent of the landlord.

Such statement may be given orally if the written notification advises the applicant of his right to have the statement of reasons confirmed in writing on written request.(3) A statement of reasons meets the requirements of this section only if it contains the specific reasons for the adverse action taken.(4) Where a creditor has been requested by a third party to make a specific extension of credit directly or indirectly to an applicant, the notification and statement of reasons required by this subsection may be made directly by such creditor, or indirectly through the third party, provided in either case that the identity of the creditor is disclosed.(5) The requirements of paragraph (2), (3), or (4) may be satisfied by verbal statements or notifications in the case of any creditor who did not act on more than one hundred and fifty applications during the calendar year preceding the calendar year in which the adverse action is taken, as determined under regulations of the Bureau.(6) For purposes of this subsection, the term “adverse action” means a denial or revocation of credit, a change in the terms of an existing credit arrangement, or a refusal to grant credit in substantially the amount or on substantially the terms requested.

These laws generally protect the buyer and cannot be waived even if the buyer expressly consents.

Arrangements like the one you suggest (where the agent gets a share of the revenue or an equity split) are way outside the norm, and outside the scope of a listing agreement - you'd likely need an attorney to draft such a partnership or JV, you may need affiliated business disclosures and other documents to comply with numerous federal laws, and these are not deals a real estate agent can necessarily enter into without their broker's awareness and consent.

Given all the security breaches and God knows what with the internet these days (and every company swearing up and down that it is safe and impregnible), the less access to my financial accounts without my direct, in-time, knowledge and consent the better.

@Kalen MillsMy neighbors dog crapped in my front yard without my consent !!!