If I were to use a MM, I would use I_Love_LA since he is free. However, since he has offered for the RSGP, I feel as if it would be a slap in the face to use him as a MM for something I would not sell to him.
I would say yes if you paid the MM fees, but I don't feel comfortable as chargeback/disputes can still occur.
not at all, it's your decision who you want to sell to. Sell to the person giving highest offer who you can trust. I can mm whatever you want me to as long as it's possible.

