But I've heard of people implementing RUBS to make a significant increase in cash flow.

Being new you will have a lot on your plate and need to implement systems and procedures in your rental.

Landlord pays for oil, water/sewer and trash.If we end up acquiring the building, we would somehow want to pass the heating cost to the tenants for new leases.One way would be to implement RUBS (utility bill back to the tenants based on sq footage of the units, # of occupants, etc).Another way would be to convert to electric heat.

Seems like you have a great model that works for you and if implemented properly could work for a new investor. 

You should listen to a like minded investor who implemented your plan 10-15 years ago; Bigger Pockets Podcast Aug 23, 2018 with Chad Carson.Good Luck!

My understanding is that they have not implemented the calculators option on the mobile app.

Looks like nothing comes into play until next year but the articles I've read are not clear on when the new rules will be implemented. 

You now have near or absolute control of the association and can implement rules / regulations that improve the property / community.

Implementing a new lease that includes late fees and consequences for multiple times being late for rent immediately.

Ultimately you would know if you feel as though you have the capacity to quickly learn trades, implement action plans, and work with people.