Unfortunately, you said some magic words that chum's the waters so que the "please contact me PLEASE CONTACT ME" replies vs actually answering to what you posted...... 

The big deals will be vacancy, capex and appliances. (3 water heaters, stoves, fridges, microwaves?

IE at the time if you built on all the hundreds of thousands of lots there you would have perpetual grid lock not to mention water quality etc etc.

The pipes have to be dewinterized so I would have a plumbing professional there prior and when the water gets turned back on just in case.

Year 2 had some large expenses, including some CapEx items (water heater, roof).

In a dream world - the comprehensive solution does all this: *task management and sequencing where you can drop a property into a sequence ie day 1 call, day 2 mailer (have it automatically mail out something like a postcard) day 3 etc etc etc*project management outside of the outreach sequences for what's next in the process ie schedule inspection, send the contract, etc etc*ability to have multiple users drive around and if you see a property you can tag an address and add it into a marketing sequence, and also track the streets you've hit so you're not wasting time driving by the same houses more than once *dialer (ability to parallel dial numerous numbers simultaneously to make cold calling more efficient - Ive used tools like orum and kixie in other industries, and when you receive a pickup, the other calls are dropped) *skip tracing/data provider *website landing page for converting online visitors to leads*electronic signature/docusign*secondary branded landing site on different URL for blasts for deal disposition to your buyer listWhat am I missing? 

@Collin Schwartz you got me all fired up on this cold Monday morning!

Costs have escalated sharply, water up 25%, electric up 30% and natural gas up 33%, and at one property insurance went up 400%.

Don't forget about paying to start electrical, gas, water and internet services.

Inherited tenants are usually a negative, however in that area leaving the duplex totally vacant makes it a target for thieves to come in and steal your pipes, furnace, and hot water tanks.