Expecting to come up with more than $400,000 by early next week, Edgartown attorney Edward W. (Peter) Vincent is negotiating to delay a hearing set for Monday in Suffolk superior court, according to his lawyer.

When First American Title Insurance Company filed a lawsuit on March 23 against Mr. Vincent claiming he misused client funds in a Vineyard real estate transaction, a judge froze Mr. Vincent’s bank accounts “other than for normal, incidental living expenses not to exceed $1,000” a month, attached liens of $500,000 to his real estate and related income, and granted the title insurance company access to Mr. Vincent’s office to search his files dating back to 2005. A hearing on whether those temporary orders would become preliminary injunctions pending a trial was set for last Friday but postponed by mutual agreement until April 11.

“We’re hoping everyone will agree to hold off” on the next hearing, said Mr. Vincent’s attorney, Roger Matthews, of the Boston firm Denner Pellegrino.

He said there were people involved in “assisting in raising funds” that would pay back money cited as missing in the First American case, as well as in another lawsuit brought by the MSPCA in Dukes County superior court, where nearly $200,000 is at issue. That case also has resulted in orders restricting Mr. Vincent from accessing his bank accounts and attaching liens to his property.

As for where the money would come from, Mr. Matthews said, “It’s being taken care of . . . in a transaction I can’t detail.”

He said he expected that the two cases against Mr. Vincent would be resolved by repaying the missing funds.

A criminal investigation is active and ongoing, in consultation with the Attorney General and Cape and Islands district attorney’s offices, according to Edgartown police Det. Sgt. Christopher Dolby.

Mr. Vincent also has been the subject of two complaints to the Massachusetts Board of Bar Overseers, which confirmed last week it was investigating and Mr. Vincent would have 20 days to respond. Mr. Matthews said he had been in touch with the bar counsel but could not elaborate.

Meanwhile in Dukes County probate court this week, a judge allowed a request for Mr. Vincent to be removed as executor of the estate of the late Richard Steigelman, and for all books and records related to the estate to be turned over from Mr. Vincent.

Attorney Jay Theise, acting for the beneficiaries, said the probate action was “completely and totally unrelated” to the lawsuits against Mr. Vincent. The only relationship, he said, was that with those matters pending, it was prudent to seek Mr. Vincent’s removal as executor and trustee of the estate.

Mr. Vincent was not present at the most recent meeting of the Edgartown conservation commission, of which he is chairman. Mr. Vincent is also the town-appointed representative to MVTV and on the town community preservation committee.

The chairman of the town selectmen, Margaret Serpa, said however that the selectmen had not discussed whether to replace Mr. Vincent with someone else while he resolved the legal complaints against him.

“At some point we may,” she said, “when we all get together.”

MVTV executive director, Julienne Turner, had no comment on how the allegations against Mr. Vincent might affect her organization.

An elected member of the Martha’s Vineyard Land Bank commission, Mr. Vincent’s term runs to 2013, according to its executive director James Lengyel, who also declined to comment.