You should also send something to the agent certified with return receipt as well as his sponsoring broker and let him know that you have sent this to the Seller as motivation for both parties (e.g. reimburse my earnest money by XX date or I will be pursuing this in small claims court in the amount of $XXX times 3 as mentioned in the contract Paragraph 1, Section 3A blah blah blah and you will be responsible for my attorneys fees as well) - have an attorney help you with the language to make sure it meets your needs since many states are different.  

We've decided on a 50/50 split in profits.I'm hung up on if the contractor should be paid at all for his personal labor in the project as an expense that will be reimbursed before we split the profits.

He is reimbursing me each month for all the utilities, water, electric, and Comcast.  

It's not a nice gesture when they knew they were going to be reimbursed.

@Tim VandenToorn stated his Property Management company does this and its wise to do so regardless of whether the tenant will be financially responsible for reimbursing you.  

And if you're filing for rent court/eviction, she is also reimbursing you for that (or she should be!).

However, functionally, we pay the bills directly for any public utility that has the ability to lien the property, then pass along to the tenant to reimburse us.

Some lenders will send a reimbursement via check, ACH or wire right away.

We could do labor only to eliminate the up front deposit, but then we would need to pay for the materials and then get reimbursed by the bank, again needing to have a good chunk of the rehab budget liquid. 

Get your employer to pay for it or change jobs to a place that will reimburse.