Except as detailed in this consent, the SoFi Personal Loan may be used for personal, family or household purposes."

GF refinanced to take you off the loan, you consented, and now you're buying a house for yourself.

I, in conjunction with the buyers consent, ALWAYS negotiated the 3% into the contract.

The third sibling will most likely consent as well....he's been distracted burying his mother in law and settling her estate.  

The bank is not going to talk to you without the consent of the owner.

Eventually, the unwanted partner will want to get rid of the ownership and can't without consent of the other partners, so really the only buyer would be the original partner.Joe

I plan to ask around to different complexes if they allow it, and would obtain written consent before signing any type of lease.

We are not ignoring the second sentence, it clearly states the Seller MAY assign at ITS sole discretion, WITHOUT PRIOR NOTICE OR CONSENT OF THE PURCHASER. 

I have a pet clause in my lease that says "No pets, birds, or animals of any kind allowed on premises without written consent of landlord and Pet Addendum signed".When my tenants moved in, I asked them if they had pets, they said "no".

Tenant may not, without landlord's prior written consent, apply this security deposit to the last month's rent or any other sum due under the agreement..."