Mainly looking for software to track expenses for flips and if a different software to track expenses for rental property upgrades etc.  

I've always held title in an LLC name, the main reason being limiting my liability in the event that a tenant or someone else initiates a lawsuit or other action as a result of something that occurred on the property (nothing to do with financing- as you note the bank has the overriding claim).  

Main difference being the length of time for each step, costs, method of valuation, and inconsistency across lenders.Many lenders won't let you pull all equity out though, YMMV.

At some point it will become more attractive to build a new house for 250k in Milwaukee than to rehab an old one. 

I am a financial independence "enthusiast" if you will and always interested in adding more semi-"passive" incomes streams to supplement my current investment portfolio (mainly index funds at the moment).

I have contacts in the Midwest that make that area quite attractive for me. 

Its young professional workforce is attracted to Denver’s natural beauty and vibrant downtown.

I guess one of my main worries is she is going to try to pull a lawsuit on me due to the sewer gas? 

I wouldn't look at expenses per door, expenses as a percentage of gross potential profit.Per door is mainly acq cost and rent...

It looks like it receives power from the main house, so it would have to be permitted, no?