The Unlikely Angel (Signet Regency Romance)

The daughter of a wealthy merchant devotes her life to London's orphans, many of whom are the result of society's rakes and their conquests. Considered an old maid at 25, she has no use for anything except donations. But when a handsome Viscount becomes her landlord and doubles her rent, she readies herself for battle. When they eventually meet she is caught off guard by his disarming charm, and suddenly feels the long-ago stirring of innocent young charges.