Is their a law to restrict or punish this kind malicious litigation?

You can not do anything to punish this behavior.

Set a list of 'punishments' for each stage of the process that you don't achieve. 

(Again, if you have not read this document you really should as you could be found guilty of unintentional, but punishable discrimination)Section B"In the second step of the discriminatory effects analysis, the burden shifts to the housing provider to prove that the challenged policy or practice is justified – that is, that it is necessary to achieve a substantial, legitimate, nondiscriminatory interest of the provider.  

Since the CFPB and many other agencies that affect community owners and retailers have published material making it clear that those subject to the laws and rules they are responsible to enforce must have a compliance management system or risk being adjudged a scofflaw and subject to even more serious fines, penalties, and punishments, why is it wrong to relate that in this forum.

Hello,I want to know if I will get the same low rates as everyone else or if I will be punished when I get a loan to buy my new primary residence?

Their only punishment was damaged credit, but now enough time has passed that their credit is restored and they are ready to start the process all over again.

Also, if the lender found out you turned the current place into a rental, they may punish you with fines.If you refi and change it to a conventional loan you should be able to get a new FHA loan for your new owner-occupied place.

There's a zombie duplex (with an additional trashed single wide) that I'm eyeing if I can get it for a song (cause let me tell you, this place is what nightmares are made of, but I'm a glutton for punishment).

Punishing the tenant doesn't enter the picture.