For more than two decades, Kimberly Burnworth has lived in a mobile home in rural West Virginia on a tract her grandfather acquired in the 1960s. A single mother, Ms. Burnworth is paid by the government to be a caregiver to her 11-year-old son, David, who has muscular dystrophy.Between food, medicines and a $61,000 mortgage, money is a constant worry. Increasingly, Ms. Burnworth is also worried she will be evicted. She hasn’t made a mortgage payment in nearly two years after losing her job. The lender — 21st Mortgage, a company controlled by Warren E. Buffett’s Berkshire Hathaway — is …
