Perform LDA Text Analysis Using R

I need someone to help me performing LDA text analysis using R. The person MUST BE EXPERIENCED in performing Text Analysis using R. I myself am starting to do that so I need someone to work as a Research Assistant in this short term project and help me with the code. I have csv files with text that I extract using OCR and a baseline R code that was writen by a colleague to perform a similar analysis. The job is quite simple if you are familiar with LCA text analysis using R. PLEASE, JUST ANSWER IF YOU ARE REALLY FAMILIAR WITH LCA TEXT ANALYSIS USING R!