When using a loss mitigation charge on the HUD 1, the seller's lender may question the charge when going A to C.
Some lender's will not care if you charge the fee, but others may be unable to accept this fee. Some lenders work with an preapproved list of acceptable HUD 1 fees with some capping the amounts.
It might be wise to have a conversation with the negotiator before making a decision. Also, get the loss mitigation fee itemized on the approval letter. If thye give you a hard time about it, tell them you will sweeten the pot by increasing their net proceeds.
Also, loss mitigation fees will most often be called into question when they exceed agent commissions. If you are expecting to charge a fee greater then 3%, then I would definetly get this approved by submitting a new HUD to the negotiator and get the loss mitigation fee on the approval letter.
Lastly, when submitting the title company submits the HUD 1, have them do it several days prior to the scheduled close. I have had the transaction halted because the negotiator I was been dealing with was not the same person who approves the final HUD 1.
Additionally, find out how much more your end-buyer is willing to pay to have a clearer title. Generally, this would net the contractor more on the flipside and I would then negotiate a slight increase to the offer price.
Good Luck!