Dear Snap-D, I’m a junior partner at an 80-person law firm that is laying off associates and partners. All of the decisions are being made at the top without a lot of communication to anyone else. Several partners and I are nervous that we might be next and want to make ourselves marketable to other firms should we need to make a move. Any advice?A: The characteristics that make you marketable are schools attended, contributions you’ve made to the firm, hours billed, willingness to accept work, compatibility …