Portofolio management tools

[Michael Hutchinson]

Hi all, first post in the forum.  I am selling my first and only rental this month as I have been reading and realized I didn't pick well.  I plan to buy 8 houses in the next 3 years as my goal and have a friend in the industry helping me buy/repair/manage the homes while I work.  I see this as a new stream of income and the thing I want to do full time after I get the Real Estate portfolio large enough.

Question ... I am looking for a portfolio management tool/process where I can start to analyze what my friend is doing to monitor our progress, learn more about key ratios and consideration, etc.  I want to use this tool long term for my portfolio management and decision process.  In the short term, I want another way to keep track of my investments and continual learning.  Thanks in advance.