.), cleaning, utilities, yard and exterior, final walk through prep, and documentation.

In PA atleast, we utilize 2 (BAA) Exclusive, and Non-ExclusiveThis document sounds like it can serve both purposes. 

They are also able to access new investment opportunities and all documents related thereof.  

There should be a document outlining this that was created by the developer. 

What’s the best way to document the transfer to ensure Partner A’s Spouse isn’t taxed on payments they don’t receive?

Please use an attorney to write these documents - this is the equivalent of going to see a dentist in the van down by the river - it's great until something goes wrong and then you could be completely screwed 

@Frankie Lotrec if you have an existing loan on the property and you plan to legally convert from a 4 unit to 5 unit , you should check the loan documents because you’d essentially be converting it to a commercial property, since 5+ units is considered commercial and subject to different appraisal approaches and so it would rule out the property being considered for purchasers utilizing residential financing.  

Sometimes you get lucky.You could even bring up the subject of seller financing (search online for ideas of how to structure a seller financed offer), and make sure a competent real estate attorney helps write the offer documents (if it gets that far). 

The additional MTR profit could be returned to owner and trigger beneficial conditional clauses in the loan contracts?

Thank you.The BP documents are allegedly updated every year, but I've never been able to verify that.