WASHINGTON — Missing Massachusetts mom Ana Walshe managed a luxury Washington, DC apartment building infiltrated by phony federal agents — and residents say she was hiding information about the bizarre episode.

Members of the tenant association in the Crossing building — which houses journalists and government workers in the upstart Navy Yard neighborhood near the Capitol — say they fear that Arian Taherzadeh and Haider Ali will avoid a full public airing of their actions and that Walshe’s employer, Tishman Speyer, is withholding scandalous details from them.

Walshe, 39, was described to The Post as “very forceful and shady” in her handling of the aftermath of the scandal — even claiming to tenants on one occasion that she wasn’t Ana Walshe in an apparent effort to duck their questions following the April 6 FBI raid that busted Ali and Taherzadeh.

Taherzadeh pleaded guilty in August to crimes including conspiracy, unlawful possession of a large-capacity ammunition-feeding device and voyeurism. Ali pleaded guilty in October to conspiracy, bank fraud and unlawful possession of a large-capacity ammunition feeding device. He will be sentenced Feb. 24; Taherzadeh does not have a sentencing date set.

Many questions remain unanswered about the bizarre case, in which the duo stockpiled tactical gear, weapons, ammunition and surveillance equipment — while providing free rent to a Secret Service agent and lavishing gifts and flashing badges to an array of local and federal law enforcement officers while claiming to represent the non-existent US Special Police.

One tenant provided The Post with a photo of what one of the imposters said was a master key code, meaning they may have been able to plant cameras throughout the building — as questions remain about whether they were associated with foreign actors.

“I am very concerned about the voyeurism allegations and after the men pled guilty, I attempted multiple times to gain information regarding which areas and units had been impacted, and if mine had been one of them, but never received any answers,” a female member of the tenant association’s board, who asked not to be identified by name, told The Post.

“I believe the management team here is doing everything they can to avoid sharing any information about the situation at all, even information not covered by an investigation, which makes me believe the information they are withholding could be considerably detrimental to them.”

A person who lived in the complex and was close to the two men, whom building management leaned on when security issues occurred, said that “I was able to witness much of [the infiltration’s] inner workings. They were able to establish audio and video surveillance in and outside their units, as well as potentially other areas of the property.”

“I personally viewed on Arian’s phone video footage showing residents engaged in nefarious behavior from cameras in other areas of the building, which were not connected to the ones in their individual units,” the source said.

“At times, Arian had used cameras throughout the property to find me, rather than call, when he wanted to talk to me in person — which made it obvious that he either had access to the building’s common area cameras or was able to establish his own system throughout the property. Furthermore, Arian and Haider had expressed that specific cameras in the building were theirs and not management’s.”

Walshe, a mother of three who lived in Massachusetts but traveled often to DC, was a regional manager for Tishman Speyer. There does not currently appear to be a link between her disappearance on New Year’s Day and the phony-agents scandal that rocked DC. Walshe’s husband, Brian, a 46-year-old convicted con man, was arrested Sunday for allegedly lying to police. He reportedly bought $450 worth of cleaning supplies on Jan. 2.

One tenant who requested anonymity to share candid recollections about Ana Walshe called her “a wolf in sheep’s clothing” and a “very fake person” who alternated between a “power woman” persona and a meek manner while seeking to shut down or placate inquiries about how Haider and Taherzadeh managed to score five units in the upscale building, for which they allegedly failed to pay $222,000 in rent from late 2020 through spring 2022.

Walshe “lied to people and said things she wanted you to hear in the moment,” one resident recalled.

At the time of her disappearance, Walshe was on the receiving end of resident demands for the results of an internal security review.

Walshe participated in a Sept. 19 meeting with the tenant association board and wouldn’t share any information about the status of the review, which the company first disclosed in a May email to residents.

A representative of Tishman Speyer, which manages an array of other properties including Manhattan’s famous 30 Rockefeller Plaza, defended the company Friday, telling The Post that after the September meeting with tenants: “No additional questions were ever submitted to building management.”

The tenant association fired back, telling The Post that questions were raised before and during the meeting that were not answered and that additional verbal follow-ups were pursued. Setting up the September meeting, an association member added, “was like pulling teeth.”

The corporate rep also pointed The Post to a May 5 email to tenants — before the voyeurism allegations emerged — attempting to reassure renters after a preliminary internal review.

That communication said that the company “confirmed” that “neither of the defendants’ codes was used (or could have been used) to enter any other residents’ units” — without directly addressing their claim to have had a universal access code.

The email confirmed that the phony agents had “a hard-copy building ‘directory’ they had misappropriated,” but that “resident information included in the misappropriated directory” was limited to name, unit number, phone number and email address.

Late Friday, a spokesman for Tishman Speyer issued another statement to The Post, saying: “The safety and security of our residents, staff and guests are our top priority. We have fully cooperated and actively assisted federal authorities throughout their investigation and are grateful for their care and thoroughness. We have communicated regularly with our residents through this process.”

Although Walshe’s disappearance is believed to be linked to her husband and not the fake agents, the tenant said, “I think there’s a lot of unknowns still and it’s very odd in general.”

Walshe, whom tenants recall speaking with a thick Eastern European accent, was put in charge of the building at roughly the time of the April raid and tenants say it’s unclear if she was chosen to navigate the scandal or if her role began shortly beforehand.

In addition to claiming to be part of the Department of Homeland Security, the Justice Department says Ali boasted that he had links to Pakistani intelligence and possessed a passport with two Iranian visas from 2019 to 2020 as well as three older Pakistani visas.

“For nearly eight months, Crossing DC management has refused to provide any answers or clarity when it comes to residents’ safety and security following the FBI raid,” Nathaniel Hunt Kelly, president of the tenants association, told The Post.

“Rather,” he said, “they have done everything they can to obfuscate information from residents and the general public. Those living here have felt great concern and are left with more questions than answers. Tishman Speyer, in my experience, will operate within the greyest areas of the law, lie to individuals who seek answers, and provide little to nothing for residents’ peace of mind.”

Court filings that reveal some details of the infiltration operation describe what could be the plot of a spy-thriller movie.

“Taherzadeh stated that Ali had obtained the electronic access codes and a list of all of the tenants in the apartment complex,” according to one court filing from authorities. “Taherzadeh further stated that Ali was the individual that funded most of their day-to-day operation but Taherzadeh did not know the source of the funds.”

Authorities say they seized guns, sniper scopes, a drone, police lights, protective vests, gas masks, “breach equipment” and law enforcement insignia and equipment to make fake IDs.

Authorities say Taherzadeh and Ali “compromised United States Secret Service (USSS) personnel involved in protective details and with access to the White House complex by lavishing gifts upon them, including rent-free living.”

One member of the Secret Service was allowed by the men to live rent-free in a penthouse from February 2021 to January 2022 — at a market cost of more than $40,000 — while another federal law enforcement officer’s rent in the building also was covered, authorities say.

In a court filing, authorities said Taherzadeh “provided members of the United States Secret Service (USSS) and an employee of DHS with, among other things, rent-free apartments … iPhones, surveillance systems, a drone, a flat screen television, a case for storing an assault rifle, a generator, and law enforcement paraphernalia.”

The conspirators also “offered these individuals use of, what Taherzadeh represented to be ‘official government vehicles'” and allegedly “offered to purchase a $2,000 assault rifle for a United Secret Service Agent assigned to the First Lady’s protective detail.”

The four Secret Service agents were placed on leave pending a review of their actions.