In March 2014, when a historic but vacant building across from Roxbury’s Boys and Girls Club in Dudley Square burned down, several longtime homeowners immediately suspected arson. Civic groups met with Boston police and fire officials to implore them to fully investigate the home’s past and present owners, and some even brought property records they felt were suspicious.

“This was not a casual fire,’’ remembered Louis Elisa, who heads the Garrison-Trotter neighborhood association in Roxbury. “The building was completely destroyed in less than five minutes.’’

Two years later, and in the wake of new revelations about the fire in a two-part Boston Globe series about questionable property deals in Roxbury, the residents’ concerns have been revived. In the weeks since the series was published, they have begun questioning the investigation into the seven-alarm Warren Street fire that erupted in a building owned by Tyler Pam, a member of the family business linked to numerous real estate scams detailed in the Globe stories. The residents’ suspicions come as another family in Roxbury is accusing his father, Rolando Pam, of real estate impropriety in a matter unrelated to the fire.

“Anytime that you lose a building like that, it affects people,’’ said Lorraine Wheeler, who heads the Moreland Street community group in Roxbury. “We wanted the city to take responsibility.’’

Last month, the state Attorney General’s office and Suffolk District Attorney each confirmed open investigations involving the Pam family business, with the attorney general’s probe focusing more on two charitable organizations, Veterans Benefits Clearinghouse Development and Roxbury Action Program that did business with them.

The neighbors’ renewed questions came after the Globe reported, among other things, that an insurance company investigator discovered evidence of an “intentional fire’’ on Warren Street in 2014, including the use of an accelerant such as gas or kerosene allegedly spread on the first floor. Documents also show that Tyler Pam received $524,000 in an insurance payout — almost $175,000 more than he spent to buy the property from Veterans Benefits.

Still, no criminal investigation has been opened into the fire, nor has any potential arsonist identified in the case. Previously, Rolando and Tyler Pam said they had no idea how the mysterious fire started.

At the time of the fire, Rolando Pam told investigators information suggesting a group of squatters ignited the blaze.

Their Roxbury neighbors remain suspicious.

“It’s especially unfortunate because it involves a charity,’’ Wheeler said. “What happened to those funds?’’

Wheeler said she and other residents long suspected the fire was intentional, and were part of the dozens who met with the Boston fire and police officials years ago to express concerns.

The community meeting, which was confirmed by a fire department spokesman, occurred in May 2014 at the B-2 police station on Washington Street. During that discussion and in a community meeting a week before, about 25 residents spoke openly about their suspicions of arson and begged the department to clean up the fire rubble, which languished for almost three months, Wheeler and other residents said.

“When that property is allowed to sit there for that amount of time, there’s still a sense that one lives in the ghetto,’’ said Marie Lindahl, a 44-year Roxbury resident. “We had to live with that putrid smoke and those ruins. It just shouldn’t be.’’

Steve MacDonald, a spokesman for the Boston Fire Department, said investigators explored all possible options regarding the fire’s cause — which remains “undetermined.’’

MacDonald acknowledged the investigation was limited by a bureaucratic dispute.

The Boston Fire Department, the property owner, Tyler Pam, and the building’s insurance company were at odds over who would pay for a crane to remove the building’s singed remains.

“The area that needed to be investigated was under rubble,’’ MacDonald said. “In a vacant building that collapsed, you wouldn’t have the city hiring a crane for thousands of dollars. It’s the property owner or the insurance company.’’

Because the fire department did not want to incur the expense, city investigators were without access to the fire’s origin point, MacDonald said. However, he dismissed claims that the department should have investigated the fire further.

“There’s a lot of opinions of how something started, but if you have to go to court, you have to factually say how it started,’’ MacDonald said. “I keep going back to the part that it’s a vacant building. That certainly was a factor in the investigation.’’

The Pam family has been linked to numerous real estate scams, mostly in Roxbury and Dorchester. Altogether, a Globe review found Rolando Pam, two of his sons, and their companies have been accused in civil litigation of trying to illegally obtain at least 20 properties worth more than $6 million located throughout Greater Boston.

Pam has never been arrested or indicted on any criminal charges related to his real estate dealings, and neither has his son and frequent business partner, 31-year-old Tyler. Another son, Kyle Pam, 28, was arrested last November on criminal real estate fraud charges but was not prosecuted in a similar case decided in civil court.

“This all has left people scratching their heads and asking what’s really going on,’’ said Harry Smith, a director at the Dudley Street Neighborhood Initiative in Roxbury.

“If law enforcement doesn’t do anything about this, that speaks volumes about how they feel about the black community,’’ said Elisa, the Roxbury resident and neighborhood leader.

Since the articles were published, the office of Boston City Councilor Tito Jackson, whose district includes many of the properties the Pams have touched, received numerous phone calls about the Pams, aides said.

At least one call to Jackson’s office, which involved Judith Marriro and her family’s triple-decker on Harold Street, was referred to law enforcement.

The Globe spoke with Marriro and her family, who met recently with a lawyer and may file a civil lawsuit against Rolando Pam.

In the allegations the Marriro family presented, Pam is characterized as a seemingly well-intentioned family friend, who secretly conspired to take their family home on Harold Street.

He lived free-of-charge at the Marriro’s residence for two years beginning around 2008, and once helped her stave off foreclosure, she said.

“We knew [Rolando] for a long time. I thought I could trust him,’’ she said.

In June 2015, years after Pam moved out, a recorded house sale showed Marriro selling the home on Harold Street to Rolando Pam’s daughter, Charise Pam. The sale allegedly occurred for $5,000, according to the recorded deed, though the house is assessed at $444,200.

When asked about the sale, Rolando Pam said he put the property in his daughter’s name to help keep Marriro’s house from being foreclosed again.

Pam also said he has no intention of reselling the home, though a Roxbury real estate dealer told the Globe that Pam has been hawking the home on the open market for more than $300,000.

But in an interview, Marriro stressed she was unaware of any transfer until last week and has not received $5,000.

She also said that she never intended to sell her home, and has never conducted business with Pam’s daughter, Cherise.

“It’s frustrating,’’ said Craig Marriro, Judith’s grandson. Rolando “was like family. He’s sat at our kitchen table and had beers. I don’t have any hatred for him or anything; we just want the house back.’’

Marriro has been the subject of previous Boston Globe stories, which chronicled her family’s devastating bouts with fatal gun violence on Harold Street.

Until the questionable sale involving the Pams, Marriro said five generations of her family have lived in and owned the Harold Street triple-decker.

She said she has no intention of moving.

Astead W. Herndon can be reached atastead.herndon @globe.com. Patricia Wen can be reached at patricia.wen @globe.com.