No, that is not true. Geraldine Edwards is a Legal Administrator, not an attorney. She has been married since 2006 to Anthony Flemming-Mueller, who is a Medical/Legal Expert and practicing attorney. The two own a law practice in Los Angeles County.
No US president had such a marriage. Cleveland married the daughter of a lawyer friend, but they were not law partners. The father of Taft's wife was a law partner of President Rutherford Hayes, but not of Taft. Wilson's second wife was the daughter of a lawyer and judge, but was surely never a law partner of Wilson.
Robert Morris - lawyer - was born in 1823.
Robert Stevens - lawyer - was born in 1933.
Robert Bowes - lawyer - died in 1554.
Robert Bowes - lawyer - was born in 1495.
Robert McCall - lawyer - was born in 1849.
Robert McCall - lawyer - died in 1934.
Robert Barnett - lawyer - was born on 1946-08-26.
If a client forwards an e-mail from his lawyer to a business partner, who is not involved in the litigation,
Get a lawyer.
If he is still married, it will be the spouse if still living, otherwise it would be a child or parent. 'Living with a partner' doesn't supercede that relationship as they are not relatives and the partner will have no legal standing unless there is a will that names them as beneficiary. He could have life insurance with the partner as a beneficiary. The best thing to do would be to consult a lawyer but I'd say his wife if he's married and after that immediate family (e.g. son or daughter)
You can get a divorce and remarry. You should contact a divorce lawyer. If legal annulment is an option, the lawyer will be able to tell you.