A lot of good advice here but a lot of BS as well.
@thailand49 has written it all; he knows what he's talking about.
They have a saying here in Thailand, which sounds like “leo gone, dai gone” and means:
“be evil first, get it first.”
Let's say your landlord forces you to pay him money, which due to the law and your rental contract you were not obliged to pay. Even if the court decides later that she must pay you back, you might never get it.
I've heard many times from “wise” Farangs “if you need a lawyer in Thailand you have lost already” or “if your opponent is Thai and has connections to the police, just give up and pay him what he wants, as you might wake up one day wondering why you have wings”
Due to personal experience, I can confirm, this is BS.
The judges are fair but it is important to dress, talk and act properly when at court; if you can't speak Thai, you have the right - and I would strictly recommend that - to get yourself a translator, who knows his job - the girlfriend you met last week for the first time might not be the best idea even if she is from a gentleman club.
I've seen Farangs attending the court in shorts and Chang Beer tank tops trying to compensate their lack of knowledge of the Thai Language by volume; needless to report the outcome.
A friend of mine bought a nice house in the well-known way by using a company, where he has his 49% shares. One or two years later he met a nice girl and after a few weeks he asked her to move in.
All went well but after a few months she started to get more and more demanding and about two years later, after he had tried everything to fight for the relationship, and finally found out that no matter how much he would pay her and no matter how many rules they would agree on about her expenses, she wanted only one thing: MORE.
He left in the morning and told her, that he will be back in the afternoon and expects her to be gone by then. When he came back the only things that had changed, were the door locks.
He shouted: “get out of my house” and she answered “this Thailand, I am Thai, this my house. Farang go back your country.”
He knew a good lawyer, who got him a interlocutory injunction, but every time, he came near the house with his lawyer and a few policemen, she would threaten to commit suicide if anyone would try to get in.
Months later he got his house back by paying a bunch of motorbike taxi drivers to observe that house 24/7. They found out, that she would sneak out late at night on certain days of the week to visit her Thai boyfriend and spend some quality time with him and buy groceries on her way back.
One time after she had left, he broke in, changed all the locks, and got back his house.
When she realized, she started screaming again threatening to kill himself and all he answered was “This Thailand, you are Thai, you can do, up to you but not in my house.”
But before it gets that far, always keep one thing in mind:
Always have a clean record.
Do not intentionally damage any part of that house. Never get into a verbal or physical fight with your landlord or anyone else. Always be polite and reasonable.
Any wrongdoings on your side are perfect weapons for your opponent.
Those Farangs, who literally <deleted> themselves, when the other guy shows up with policemen, usually have some skeletons in their cupboard and the first thing those policemen will do, when a fellow countryman asks them for help against a foreigner, is checking his papers, work permit, visa status and so on although this has nothing to do with the actual dispute between the foreigner and the Thai guy.
And if there are any inconsistencies, well, let's say, better if there aren't any.
About 15 years ago I had paid a Farang, 70.000, - Baht in advance to advertise my business in his new magazine. Of course, we had a written contract which clearly stated the beginning and the ending of the deal but somehow, he never honored his part of that contract and came up with cheap excuses, like the printing house ran out of ink or things like that.
I said I want my money back, which he refused, which again made me tell him that I will sue him.
A few days later he walked into my place accompanied by a uniformed immigration officer, from a lower rank as far as I could see, and told me, I should have known better than to mess with him.
A second later the officer started shouting at me with a very aggressive voice asking me for my passport, my visa, and all the permissions I needed for my business.
What he didn't know, was that the elder brother of my father-in-law was working in the immigration in Bangkok, his rank being Police Major General, which probably made him the boss of his boss.
I took my phone, called the Major General, explained him my situation and handed it to the officer.
He got even more aggressive and hit my hand with the back of his hand which made it fall on the floor. I picked it up and wanted to check if we are still connected, when I heard the voice of the Major General, who probably realized what just had happened:
“Put it on speaker.”
A few seconds later everybody in the room could hear his deep voice:
“Do you recognize my voice?”
It took the officer a few seconds to realize, who was talking to him and his facial expression changed from arrogant and aggressive too desperate and suicidal.
“Khrap”
“GET OUT!”
I got my money back within 24 hours.
Generally spoken Thai people seem to have high respect for lawyers and uniformed people.
Best thing you can do right now, is look for a good lawyer.
Google them, read the reviews and choose one. I could recommend one but try it first by yourself and find one where the chemistry is OK.
Get a consultation from him about your rights and your duties and report all the wrongdoings of your landlord.
It is mandatory that the communication between you and your lawyer is perfect.
For example, I don't think your lawyer wanted the 130.000,- for himself. I had 3 lawsuits, 2 at the civil court Pattaya and one at the family court and for each of them I had to pay for 50,000 baht deposit at the court, for the family court even 100.000,-.
Depending on the outcome, you'll get your money back.
But it has not to get that far because your situation is quite clear: they are wrong.
Your landlord probably thinks you're just a stupid and helpless foreigner, easy to intimidate.
Let your lawyer contact them by phone or letter and make it absolutely clear, that from now on every kind of communication between you and the landlord or the agency or any request to pay some bill or to inspect the house must be done with your lawyer.
No exceptions.
You will see, that will cool them down, because from then on, any wrongdoings on their side are registered it will have consequences.