I went upstairs to check and the tenant now installed a water filtration system in the kitchen sink.

Is there a relatively inexpensive way to split the heating system so that each apartment can pay for their own heat?

Hi @Palmira Angelova Take what you think you need (roof and systems) and keep 20% more in reserves for what you don't know.

Most of the builders in the area (it's a rural area not serviced by city water, only wells) are installing "point of use" RO (Reverse Osmosis) systems (about $500 installed under the kitchen sink). 

Not sure if it matters, but the whole building and all units have a fire suppression system and other things needed for a commercial building since the 1st two floors are commercial, the city made us make the entire building outfitted with a fire suppression system and wireless notification.

If you find a new system that works better, I'd love to hear.

So, that we can try to establish written systems and checklists to be used as a guide throughout this process.

This allows the REI to exponentially grow as opposed to  the limited linear growth that current strategies allow for.This also allows for paying higher interest (using special rules) and even more than the Asking Price for a property and make instantly more money, more cash, and more future gains (appreciation and equity) then using the current buy low and sell high system. 

Those all get your set up for success and are focused on RE.Most agents fail because they are looking for the pot of gold at the end of the rainbow first, but never set up mindset and systems to help them grow to get there.

@Alyxandria WelchTo add onto @Bill Hampton 's post, if you use an accountant to prepare your tax returns, find out software systems they can use.