All of these are combined and depending on the ranking maintenance or repairs are selected to keep more essential building/system in working conditions. 

All one lump sum combined in the rent amount.3.

It is a combination of a good QI and a good agent, typically.

E g $1,000 in rent combined = $100k.

I think you are making it too hard, and are confusing it by combining 2 different ideas.#1) If I accept a service fee in a real estate transaction, then I need a license.

You agree to make the mortgage and other payments during the time you own the property, and when you sell the property, the loan is paid off from the proceeds and you are left with your profit.It is also possible to combine various types of financing.

I think the angles of finding deals will be a combination of connections and software.

There are a lot of ways to potentially go with this, but just most basically I would consider separating, for now, your investing and your living... pursue each one separately like it is it's own thing, and then see if there is room later for them to be combined.

But depending on your initial $$ you have to start out with, if you are quickly buying properties then you will most likely ALWAYS be managing a combination of 3-4 major activities at the same time.

I feel that I am decently organized but use a combination of saving documents on my computer or Google drive.