You can pick a few based on the feature set and get a few demos to decide:PM software: Azibo, Avail, Innago, Apartments.com, Hemlane, Turbotenant, Rentredi, Tenant Cloud, eRentpayment, Zillow rental managerRental accounting tool: Azibo, Stessa, REIHub, Quickbooks (not specifically for rentals and pricier though)Rental banking: Azibo, Stessamove-in/move-out inspection: rentcheckHope it helps!

I recently closed a hard money loan on a small house in the Seattle area where the borrower was going to add a DADU and then demo the house and replace it with a Town Home with and ADU.

@Darwin CrawfordCertainly would be a good idea to hop over here and check out the places to be sure you are getting what you paid for, heard a similar story a couple years ago here in Youngstown about an out of state investor buying up "renovated" section 8 property who ended up buying 2 vacant lots since the city razed the 2 homes before he ever made it out here since they were on the demo list.However.... a good property manager of course can be your boots on the ground here and save you the trip if you don't feel it necessary.

He gave me a demo on Syndication Pro and it is impressive. 

Do all of the demo first.

Best bet for this one may be to demo its contents into a dumpster and sell the lot.

I've done demos for Buildium and Tenant Cloud and found just plain ol' Excel helps me keep track of everything.

Like demo and dumpster filling with **** covered ...everything. 

You start out with a list of "big jobs" (i.e. roof needs replacing, plumbing work for licensed plumber (assuming you pull permits-something I think you could get away with 10x easier 5 or 10 years ago not pulling them) electrical work for electrician, demo, drywall, . . . ) Yet, it seems like you'll also get to the point, nearing the end where you will have a long list of "little jobs" detail stuff, little fixes, details you didn't notice due to all of the major fixes needed before, etc, where having a single all around handyman type guy (or girl!)

Did you take pictures of the installation before you demoed?