Any legal implications making an apartment+landlord review site/app?

Hi, so for the past 12 years, I've been moving every 1-2 years due to super frustrating landlords. My sister and I have been moving around the outskirts of boston (everett, arlington, dorchester,dedham). We've dealt with bee infestations, fly infestations, snail infestations, algea patches growing all around with tons of mold. I know the various processes to go about dealing with this and they are long and painful. In my current situation, we've gotten a major mouse problem. The landlord has nonchalantly been dealing with the issue but the mice pretty much began treating the apartment like their playground. I'll be watching a movie and a few will zip by my feet. My sister and I took matters into our own hands and got a cat and that did the job. Unfortunately due to getting the cat, this broke the terms of the lease (we were coming to near the end anyways). So after dealing with this crap for a while, I was speaking with a co-worker of mine whom was complaining about her landlord as well. Over the last 12 years, they've just been a MAJOR pain to deal with and I feel like I need to do something about it. As a developer it wouldn't take much for me to do this or if anyone already knows one that exists that I can use as I go about finding my next apartment.