Is it reasonable for a buyer to expect a discount just because I'm motivated to sell quickly?

It's a common and understandable negotiating position from the buyer's side, even if "reasonable" is ultimately your call to make. A buyer who senses genuine urgency on your part will often test whether that urgency translates into flexibility on price, since a motivated seller is, in practice, often willing to accept less to close faster, and buyers know this.

The nuance is that your urgency and your price aren't actually linked by any rule, only by negotiation dynamics, and you're not obligated to accept a discount simply because a buyer points out you seem eager to close. The real question is what you're actually willing to trade for speed: if a faster close genuinely matters to you, for personal, health, or other reasons, some flexibility on price or terms may be a reasonable trade you're choosing to make, rather than one being imposed on you.

Being aware of how visible your urgency is, and deciding in advance what you're willing to give up for speed versus what you're not, tends to serve you better than reacting to a buyer's pressure in the moment. A business lawyer can help you negotiate a faster timeline without necessarily accepting every discount a buyer suggests should come with it.