In my past two columns, I reviewed the basics of bed sore injury cases and asked two attorneys — plaintiff’s lawyer Margaret Battersby Black and defense lawyer Laura Lally — for their thoughts on what makes a winning case. Today, I’m relaying several pointers from each of them.From Margaret Battersby Black, partner at Levin & Perconti:Carefully chart the progression of the wound. Link periods where the nursing home isn’t doing what it should.Photos are key. If there are none, use a medical …