It might cost a 3-10K to fix this problem... 

Selling to a friend who sells to you again would not be an arms length transaction because you have a personal relationship with them and also you would pay closing costs twice to make this happen which is expensive. 3.

I am looking for any helpful information you have to share or any (free online) resources; podcasts, books etc.

Can be profitable ,BUT, my experience as a hard money lender is that there are many companies operstimg in this field that aren’t very stable financially.  

I have read that Texas usually prefers a warranty deed and looks down upon quitclaim but also that if something between family members that is just a removal it is okay.  

Been researching, reading, listening, but the big and rough thing for me is to make the right decision/s, since my option are a lot, or maybe they do not exist?

Two completely separate things.Read this: https://www.biggerpockets.com/forums/51/topics/1122635-the-s...

Thank you @David@David Jarvi I appreciate this advice a lot.

What are the downsides or risks that I would be taking by doing this?  

This is in FL and the lease says "We will not be liable for any damages, loss, or injury to persons or property occurring within your dwelling or upon the premises.