Orthum

I keep getting called Atticus by my brother. And wife... Why did you do this to my family?

Old home dangers I might not be aware of?
I figure there are big flags you'd know that I'd miss. I'm renting a home, and it is known to contain some lead paint. (the original paint, under 2" of crappy plaster (The plaster isn't bad, its just they did such a bad job its all over the molding and everything), and above a drop ceiling) Is this something I should be worried about? I found a few old remains of nob and tube, none of it hooked up, and all the pipes have been replaced with pex... new water tank and furnace... I just am wondering are there any other big worries or anything I should keep my eye's out for?