Every season of Nightmare Tenants, Slum Landlords ever, ranked from best to worst by thousands of votes from fans of the show. The best seasons of Nightmare Tenants, Slum Landlords!

A couple who bought a second property as an investment and saw their management agent change the locks and with hold all of the rent are featured on the show. A housing team from Lewisham Council take a look at the shocking conditions that tenants have to deal with in a cramped, cold flat.

Episode 1

Ben from Lewisham Council's Rogue Landlord Unit has just a day to try and find a new place for a single mother and her child to live in or they will end up on the streets. Joan is forced to take legal action to evict her tenant who has not paid any rent for a year.

Episode 2

A couple discover that their tenant is using their property to scam students.

Episode 3

This episode features a couple who discovered their tenant was scamming students.

Episode 4

Squatters move in to an empty community centre for children.

Episode 5

The story of Lesley and Mark Irwin, who fell foul of a single mother who turned out to be a confidence trickster - she advertised their home as a rental property, and stole deposits from unwitting students hoping to move into the area. Plus, Susan and Gary Bailey, who planned to rent out their buy-to-let investment home in East London and took on an agent to deal with tenants on their behalf. However, after they withdrew from the deal, the couple found themselves locked out of their own property when he changed the locks, and they have been unable to get any help from the police.

Episode 6

A Yorkshire landlord has to call in the eviction specialists to remove tenants from a house. Music businessman Donovan hasn't received any rent for seven months from his tenants and his costs are spiralling out of control. The courts find in his favour. When he finally does get his property back, he makes an disturbing discovery.

A retired secretary has to visit her tenant in prison in order to retake possession of her buy-to-let flat, and in Manchester and mother looks to housing charity shelter for help when she believes the property she is renting is making her kids ill.

Newbie property developer Alex calls in an eviction specialist after finding that he could be arrested if he tries to oust squatters from the derelict pub he purchased.

After her tenant claimed that the property was full of damp, a landlord gets a shock when she finally gets inside to inspect the damage. And a landlord's son has to deal with unruly tenants when his father passes away.

After moving abroad for work, a landlord discovers that his tenants have left him over £20,000 behind with his morgage

Documentary series about the victims and villains of the buy-to-let boom. Catching up with some of the featured cases in the series including Les who had been forced to sleep on his sofa for two months and 70-year-old Joan whose tenants refused to go quietly.

Revisited

Documentary series about the victims and villains of the buy-to-let boom. Joy thought she had found the perfect tenant to let her house to while she volunteered at an African orphanage, but discovered that her house was being rented out room-by-room as a boutique hotel. A couple expecting their first baby face dreadful damp, and a former barber is owed more than £3000 in rent.

Episode 7

Kellie owes five months' rent and refuses to leave unless the bailiffs arrive. Arvydas is quite happy living in his garden shed. Simon wanted to sell his house post-breakup, but the tenants are still there five years later.

Episode 8

Rose lost her job and had to rent out her house, but then the tenant stopped paying rent. Selina and Lee moved to the US and let out their UK home, but now they have to go to court. When Harpreet returns to his property, he finds it has been stripped bare. Michale and his parents have been living with a life-threatening mold problem.

Episode 9

Kate's tenants became anti-social, and now they are suing her for trying to evict them

Episode 10

Claie and Simon have found their home occupied by a complete stranger who says heard about it on Gumtree. Hamza has been locked out his own house after doing a favour for a friend.

Episode 11

Catching up with some of the tenants and landlords from the first series, including a couple who purchased a building in which they hoped to establish a charity for vulnerable children, that became overrun by squatters.

Revisited 2

Lesley and Mark's tenant turned out to be a con artist scamming students. Ben investigates an unlicensed boarding property in Deptford, and Nicholas finally returns to his house only to find it booby-trapped.

Revisited 3

A woman fights to reclaim the house she was brought up in from a tenant who owes her money, and a newly-married couple in Chelsea find their buy-to-let dream turn sour.

Alex is hit with a £7,000 bill after his tenant is found to have be running a business from his property. Property developer Jon calls in an eviction specialist to rid a disused tram station of squatters.

A Watford landlord has a fight on his hands when his long-term tenant suddenly decides to stop paying and unleashes her wrath when  he tries to evict her.

Salon owner Wayne offered his employee Katie his home to rent, but is now owed £3,000 with neighbours complaining about a party house.

Teorin and Collette's large family home was turned into  holiday stopover for strangers. Alex is dependent on rent for her medical expenses, but her tenant has not paid in months.

A landlord who trusted his property to a letting agency discovers that it is being advertised on a Romania website. A single mum's tenant has vanished owing £10k in back rent and she has to prove he has abandoned the property to get it back.

Susan and Gary's too-good-to-be-true letting agent broken into their house and changed the locks. Paul learned that his father's tenant owed a staggering £20k in rent.

A couple in Kent face losing their house because of a nightmare Tenant,  and a residential home is found to have been turned into a brothel.

A retired couple pay the price when their tenants stop paying rent and invite their abusive friends to squat.

Episode 12

Revisiting the victims and villains of the rental market. Rachel rented out her cottage for three months; four years later, her tenant is still there.

Revisit

Craig has been battling family friends to get his property back after three  months of no rent. Owed thousands by Sophia, Terry was relived to get his house back, but then she called the police.

Revisits 2

In Bristol, Jon's dream of turning a former tram station into flats was derailed by squatters, has he managed to get things back on track? Two tenants living in dangerous conditions were saving for a deposit, have they hit their target?

Revisits 3

Following up on an Essex landlady who had to go to extraordinary lengths to evict her tenants, a landlord whose tenant refused to get the message, and another landlord who cannot move on with his life until he gets his tenants evicted.

Revisits 4

Landlords fall foul of two young tenants who are using their rental property as a film set. But the tenants have stopped paying the rent and are now refusing to leave.

Landlords fall foul of two young tenants who are using their rental property as a film set. Eviction lawyer Chris receives a shock at an abandoned printworks. Harrow Council tackles a bad case of fly-tipping, and landlord Paul has the fight of his life getting a violent tenant out of his property.

After offering a former tenant the use of a spare room until she gets back on her feet, a landlord then struggles to evict her, and her partner who also moves in. A landlord, travelling abroad, has to return to London when her tenants stop paying the rent, and Harrow Council officers find 30 mattresses in a flat designed for four people.

A doctor needs his lawyer to evict a defaulting tenant from his old family home. Over 30 men found living in an unsafe house refuse to name the landlord. A property owner calls in Landlord Action when he suspects that defaulting tenants have caused extensive damage. A landlady needs to get into her next-door property when her elderly tenant, an extreme hoarder, dies.

When they respond to an alarm at a laundrette, firefighters discover several people living illegally on the premises, a landlady feels betrayed after renting her property to a friend whose pets cause serious damage, and in Notting Hill tenants owe a landlord more than ú16,0

A furious landlord discovers his tenant has been subletting his exclusive London flat, squatters with a baby are given two weeks to find somewhere new to live, and a grandmother needs a High Court Sheriff to help her evict her non-paying tenants.

Emmanuel reveals what happened after he returned from working abroad for one year to find himself £24,000 in mortgage arrears and unable to get into his own property. Andy describes how he had to call the police after evicted tenants tried to force their way back into his home, and a council officer checks a small 2-bed flat that she previously found to have 12 occupants.

John and Irene had the fight of their lives evicting a family from their home. Jill invested in a house with her late husband, but it turned into a nightmare. Wayne offered his home to an employee, thinking she would be the perfect tenant.

Episode 13

Episode 14

Episode 15

Episode 16

Paul discovers that an unruly tenant may be planning to do a flit.

In Lancashire, letting agent Paul has a tenant who is behind with his rent and won't return calls. Eviction lawyer Chris is called to evict the anti-social Kirk, while Monwara and Mohammed hired a letting agency - who pocketed their tenant's rent.

Following a tip-off, Harrow Enforcement discover an industrial-scale weed farm in a house. After complaints of all-night parties in a quiet street in Darwen, letting agent Paul pays a visit. Also, Han discovered that his flat was illegally sublet.

Letting agent Paul, sales consultant Dale and housing agents Andrew and Jo all find themselves taking pity on tenants in dire straits. But they might come to regret their decisions in their efforts to help the tenants.

John wants to turn a former Blackpool hotel into bed-sits, but finds a drug den.

Boxing champion Lee didn't know about the cannabis farm in his house.

Landlord Ronnie discovered occupants turning his property into a scrap merchants.

With the ongoing housing crisis in Britain increasing conflict, eviction specialists attempt to remove nightmare tenants from buildings while elite council teams seek out rogue landlords who provide unsuitable living environments.

In Wigan, letting agents Karen and Gemma have no idea that a routine inspection is about to turn into one of the worst hoarding cases. Charlotte, a mother of two small children, is refusing to pay rent because of the poor condition her flat is in.

Letting agents Karen and Gemma investigate claims of vandalism and anti-social behaviour at a property they manage in Wigan, but when they discover the tenant is no longer living there, they track her down to learn that she's abandoned the property and has tried to move in somewhere else by forging a reference. Meanwhile, in Darwen, letting agent Paul issues proceedings on a tenant who is more than £3,000 in arrears, but Paul's attempts at evicting him are delayed when the tenant refuses to leave without Paul giving him a good reference.

Doctor Tariq, with the help of his lawyer, tries to throw out a tenant who refuses to pay. In London, the police discover that there are 30 men living in an unsafe house. They refuse to say who their landlord is.

Landlords Suketu and Minesha Patel signed a `guaranteed rent" agreement with their letting agent who manages their east London property but, after falling £7,000 in rent arrears, they confront him. Letting agents Karen O'Connor and Gemma Painter in Wigan deal with a tenant whose house is in need a big clear-out. And in Darwen, Lancashire, letting agent Paul Ainsworth Lord has his work cut out for him when he's approached by a new Landlord with a big problem.

Letting agent John faces multiple issues with an HMO he manages when one of his tenant's front doors is reported missing - by another tenant.

A teacher finally manages to evict an aggressive tenant; a landlord who evicted a squatter follows up with her; a letting agent finds success after disaster.

In Essex, helped by eviction expert, landlord Muhammad starts eviction proceedings on a tenant who owes him over eight thousand pounds in rent and legal fees.

Catching up with a landlord two years after he got his property back from a troublesome tenant who refused to leave the property without a fight. Lawyer Chris Sharp helps two Ghanaian ministers, Reverend Sarpong and Ibrahim Farook, get back their 18th century church in the heart of Liverpool so they can launch a ministry and community centre there.

What happens when conflicts between landlords and tenants get out of control?

This series delves into the dark side of the UK's housing crisis.  It follows independent eviction specialists working on behalf of landlords attempting to evict tenants who are behind with their rent, and local authority housing officers investigating rogue landlords and unsafe living conditions, including illegal HMOs (House in Multiple Occupation).

The Best Seasons of Nightmare Tenants, Slum Landlords

The Best Seasons of Nightmare Tenants, Slum Landlords

Season 1

Season 2

Season 3

Season 4

Season 5

Season 6