I can give you advice on making profit with property and real estate:
Forget about it.
It's not profitable unless you're a big company that can do it at large scale.
For you, Joe Schmoe, average guy, it won't work. You'll be making peanuts for 80+ hours of hard work at best.
a) nobody sells property at a low price anymore, and especially not to you.
b) materials + blue collar labor are at an all time high, you can't even afford to get shit fixed anymore
c) you could try fixing it up yourself, but this shit is harder than you think, you can make many mistakes, depending where you live there are a shitton of government laws that you need to know and obey or they'll fuck you up.
d) cheap houses aren't cheap. Ask yourself why they're selling it cheap instead of fixing it. Exactly, they already tried to fix it up and failed. So will you.