Officials in Palm Beach, Florida, are set to discuss on Tuesday whether the ex-president can live full-time at his Mar-a-Lago as his impeachment trial kicks 1,000 miles away in Washington DC.
The trial comes as officials in Georgia opened up an investigation into Mr Trump's attempts to overturn the election results in the state.
Secretary of State Brad Raffensperger will launch a "fact-finding and administrative" probe into the call he received from Mr Trump asking him to "find" enough votes to defeat Joe Biden.
Charles J Cooper, a prominent conservative lawyer, has trashed Donald Trump's defence that trying him for impeachment is unconstitutional, just hours before his trial begins.
This went against arguments made by top Republicans and Mr Trump's lawyers over the last month, who claimed that it is unconstitutional to try Mr Trump, as the penalty for impeachment conviction is being removed from office.
In their response to the charges Mr Trump's legal team also argue that he is protected by the first amendment. House Democrats replied to the official legal response from the Trump team denying all of their points and accusing Mr Trump of committing the "most grievous constitutional crime ever".