Seniors are being targeted in a new real estate scam that tries to get them to sign over their home for far below market value. One senior received a letter in her mailbox that offered to buy her Sunnyvale, Calif., home for $750,000. The letter included paperwork for her to sign and consent to sell. She had not put the house up for rent or for sale. The two-bedroom home is within walking distance of Apple, Google, and LinkedIn, and is valued at more than $1.5 million.