Problem Section 8 tenant is eviction the answer?

[Talha K.]

Hi BP, I have been dealing with a problem section 8 tenant for my property in Los Angeles for the past 9 months or so. I finally sent him a 90 day notice and put my reasons in a letter along with the notice. Now that 90 days is up I received a notice from HACLA for RSO violation stating that my notice was not in accordance with the RSO. I sent  a detailed email to the inspector and she refused to accept that sating that her determination stays the same. On calling her she states that we need to give him an official letter and asked us to get help from an attorney/legal help in serving this letter. The tenant actually refused to accept the letter from USPS carrier hence we had to deliver it to him in person . 

I would like advise in this matter, would it be worthwhile to seek legal help and if so does anyone know an attorney or eviction company in Los Angeles who can help us with this issue? 

Thanks