I've seen good transactions on the buying end of FSBO. It's great that your Mom can help you through the process as it doesn't have to be painful.
Based upon some behavior I've seen from FSBO sellers, here are some things that can make the transaction go more smoothly:
1) Unless your market is really hot (sounds like it is not), then be prepared to negotiate and entertain any reasonable offer. Don't set your heart on a certain number, especially not the number that is your list price. Awesome if you get that, but you probably will not. Your mom should be able to help you with this.
2) Be prepared to pay for some repairs after the inspections. You certainly don't have to do everything requested, but realize that there probably will be some requests and set aside some money for that in good faith. While it's true that you can refuse to do anything, that can torpedo a deal and at a minimum it will make the buyer think you are not bargaining in good faith unless you list the property up front with a note about "AS IS, seller will make no repairs."
3) If the buyer comes with a buyer's agent, then be prepared to pay at least half of their fee. Remember that it is traditional for the seller to pay all of the buyer's agents fees in most markets. If you say "I won't pay anything for that," then you will lose many prospective buyers. The worst asshat move I've seen in this regard is advertising "Buyer's agents welcome!" and then turning around and refusing to pay any of their fee.
Good luck!