As already mentioned, liability insurance is a must.
Also, you did not mention how much saltwater experience you have.
Your comment "I was thinking of getting a 10 gallon tank to keep running at my house so I have a quarantine tank set up if needed." indicates that you are not anticipating or have not worked with larger tanks, as a 10 gallon is to small as a qt tank for tangs, butterflys, angels, triggers, etc.
As an example, if I decide that I am tired of working on my tank or that we are traveling too much and I need a tank sitter, would you be fully able to run, fix and tweak a larger full blown reef? Are you very experienced with all types of skimmers, calcium reactors, chillers, etc.?
It's hard to tell your experience with only 14 posts and I apologize if you are a full blown reefer. It's just something that jumped out at me when you mentioned setting up the 10 or 29 gallon tank.
Joyce