We made some small repairs, added additional ext lighting, upgraded office computer, improved some biz processes, implemented a rent increase.

There are MANY ways and I haven’t even implemented 1 in my life.

The downside is that the qualified contract process takes a lot of time (about 4 years to fully implement) and can only be done after a specific point where it is allowed by the terms of the LURA (which is sometimes much earlier than the restriction's termination date without the qualified contract).This isn't a do-it-yourself strategy for a beginner--you need competent counsel with experience in doing this.  

Great idea, will certainly implement.

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.