Did both partners sign the purchase agreement?  

But if I had to simplify the concept of wholesaling in 5 steps 1/ Network with investors and build your buyer list2/ Advertise to distressed sellers and build rapport3/ Lock the deal with a Purchase Agreement 4/ Assign your contract to an End-buyer5/ Coordinate with the title company the Seller and the Buyer and get paid You get paid the difference between what the buyer is willing to pay for and what the seller agreed to sell for.Hope that'll help, good luck!

Will a title company in TX require that the seller sign off on an purchase and sales agreement (i.e disclosing the actual assignment fee, etc.)?

I have been in contact with a lender and working on getting a generic purchase agreement for my current location.

If you have an agent you have a good relationship with, you could also ask them if they have a purchase and sale agreement they are willing to provide you. 

@Pedro MoraisIt depends on the ownership structure of the LLC.sIf you are the owner of both LLC's, you can't directly make a contribution/distribution from one LLC to another.You can create a loan agreement between one LLC to another.The alternative is for one LLC(with the surplus) to make a distribution to its owner(you) and then make a contribution to the other LLC.If one LLC does own the other LLC, then yes, you can make contributions/distributions between eachother.

@Stacey Carroll, Look into a Master Lease Agreement. 

Meaning, is any easier way to get him paid other than creating a JV agreement for every single property?

No matter what agreement you strike, what makes you think this narcissist will change his behavior? 

Your recourse will depend on the wording of your purchase agreement.