Donald J. Trump’s global business empire will create an unprecedented number of conflicts of interest for a United States president, experts in legal ethics say.

Mr. Trump has said he will separate himself from his company before taking the oath of office, but he has not offered any details on how.

Ethics experts warn that if Mr. Trump puts his children in control of operations but continues to own the company, he will remain vulnerable to charges that his actions as president are guided by personal financial interests.

Here are some examples of the potential conflicts:

Trump International Hotel, Washington President-elect

Trump with advice from the Transition Team (which Mr. Trump’s children are on), by and his children run Trump Organization the head of which will be appointed, which leases the Old Post Office Building from the General Services Administration President-elect

Trump with advice from the Transition Team (which Mr. Trump’s children are on), by and his children run Trump Organization the head of which will be appointed, which leases the Old Post Office Building from the General Services Administration The Trump Organization’s contract with the General Services Administration prohibits any elected official of the United States government from being part of the lease or deriving any benefit from it. On Dec. 14, House Democrats said a G.S.A. official confirmed that Mr. Trump would be in breach of the lease agreement unless he “fully divests himself of all financial interests” in the hotel. Later in the day, the G.S.A. disputed the Democrats’ claim, saying it is “premature” to make a definitive statement “until the full circumstances surrounding the President-elect’s business arrangements have been finalized and he has assumed office.” Unless the agency ends its lease before the president-elect takes office, Mr. Trump will, in effect, be both the landlord and tenant of the building, according to two government procurement experts, Steven L. Schooner and Daniel I. Gordon. Mr. Schooner and Mr. Gordon wrote that putting Mr. Trump’s children in charge of the organization was “plainly insufficient to avoid strictly any conflict of interest or even the appearance of a conflict, particularly where the president’s name will remain as the hotel’s name, brand, trademark and marquee.”

Deutsche Bank President-elect

Trump with advice from the Transition Team (which Mr. Trump’s children are on), by and his children run Trump Organization which owes millions of dollars to Deutsche Bank which will be run by an attorney general chosen, which is negotiating a settlement with the Justice Department President-elect

Trump with advice from the Transition Team (which Mr. Trump’s children are on), by and his children run Trump Organization which owes millions of dollars to Deutsche Bank which will be run by an attorney general chosen, which is negotiating a settlement with the Justice Department Deutsche Bank, Germany’s largest bank, is in negotiations with the Justice Department to settle claims over its handling of mortgage-backed securities before the 2008 financial crisis. Questions remain about the bank’s ability to pay a large penalty. The Justice Department’s opening bid was $14 billion. If the negotiations are not settled by Jan. 20, Mr. Trump will oversee a department that has the potential to make or break the bottom line of one of his biggest lenders.

Internal Revenue Service President-elect

Trump has said his income tax returns are under audit by the an executive agency that, as of Jan. 20, will be overseen by Internal Revenue Service President-elect

Trump an executive agency that, as of Jan. 20, will be overseen by has said his income tax returns are under audit by the Internal Revenue Service The head of the Internal Revenue Service is nominated by the president for a five-year term. Republicans have tried to impeach the current commissioner, John A. Koskinen, whose term ends on Nov. 12, 2017. Mr. Koskinen could resign or be impeached before then, clearing the way for Mr. Trump to nominate a new commissioner.

National Labor Relations Board President-elect

Trump with advice from the Transition Team (which Mr. Trump’s children are on), by and his children run Trump Hotels whose members will be appointed, which have occasional disputes brought before the National Labor Relations Board President-elect

Trump with advice from the Transition Team (which Mr. Trump’s children are on), by and his children run Trump Hotels whose members will be appointed, which have occasional disputes brought before the National Labor Relations Board The National Labor Relations Board is an independent federal agency responsible for enforcing labor laws and safeguarding employees’ right to organize. The five members Mr. Trump appoints will be in charge of investigating complaints brought by workers, which could include those at his hotels and other properties. In fact, a week before the election, the board ruled against the Trump International Hotel Las Vegas, which Mr. Trump co-owns, for refusing to negotiate with a new culinary workers union. On Dec. 21, the Trump Organization announced an agreement resolving that dispute, and another easing a hurdle to unionization at the Trump hotel in Washington. Ethics experts say these accords do not eliminate the potential for conflicts of interests involving Mr. Trump and the labor board.

Foreign Interests President-elect

Trump Mr. Trump’s children and and his children run the Trump Organization, that could affect the bottom line of which has business interests in countries around the world that will be negotiating foreign policy with the Trump administration President-elect

Trump Mr. Trump’s children and and his children run the Trump Organization, that could affect the bottom line of which has business interests in countries around the world that will be negotiating foreign policy with the Trump administration At a minimum, ethics experts warn, Mr. Trump’s holdings around the globe could give the appearance of tainting his decisions on various foreign issues. In addition, they could also open him up to accusations that he has violated a part of the Constitution known as the emoluments clause, which prohibits government officials from taking payments or gifts from a foreign government or entity. “Unless he divests ownership, he will have an interest in the foreign government payments and benefits that flow to his business daily,” Norm Eisen, former chief White House ethics lawyer for President Obama, and Richard Painter, former chief White House ethics lawyer for former President George W. Bush, said in a statement on Democracy 21, a group that pushes for government transparency.