As stated above, not much you can do unless you have a divorce decree and even then you would have to return back to court to enforce it, perhaps getting reimbursed.  

And if they decide not to purchase the property then we will put in a couple of thousand to fix the property back up and then we will get reimbursed by the option fee from the new lease option buyer that comes in next (our tenants show a lot of interest in purchasing the properties and we put tenants in the properties that have a high likelihood of being able to purchase the property in the next 2-5 years).This model allows us to sell a property for about 5-10% above current market value and cut out realtor fees and closing costs (which are minimal and are paid for by the buyer at closing).  

If it's paid after you close then it's yours.Imagine if the previous landlord owed a balance on the water bill, that debt would either become yours after closing or would need to have been settled at closing.In Bridgeport however we once had to reimburse a landlord who asked for a delayed rent payment.

My FIL will take care of those items, with us reimbursing him for actual expenses.

In any case, the tenant will have to wait that 60 days for the reimbursement.

When you fix and flip, you will either pay the annual tax bill to the county and get reimbursed at the sale by the buyer for the months you won't be using the property OR you will not pay the annual tax bill and reimburse the buyer instead. 

Its a bit complicated and an accountant could work out the details but the value of the loss ($11K) is deductible regardless of the amount of the reimbursement.

We could use the cash flow to reimburse the Heloc.

Basically, you pay your new UFMIP with the reimbursement you get from the previous loan you had. #2 Its true that the premium does get added on top of the original loan amount.

Then, prior to closing you can get your bank account open, fund your LLC, assign the contract to the LLC, and have your LLC reimburse you for any out-of-pocket costs that you incurred personally.You might also be able to get your bank account open with just you and add your partner later--check with your bank.