I'm a software engineer on a sabbatical trying to find my path out of the corporate world.Looking forward to connecting!

Not allowed to use software to set your rent.

To this point I have been using trans union’s smartmove software to do credit, background, and eviction checks on my tenants.

@Jim LynchSome typical minimum tenant screening requirements look like the following, but it depends on your market:-Renter has a gross monthly income of 3x more than the monthly rent-Minimum credit score of 650-Renter must have no prior evictions-No felons (or other notable criminal history)There are a number of different tenant screening softwares out there such as Zillow Rental Manager, TransUnion SmartMove, etc.Be sure to complete an employment verification by contacting the renter's employer and confirm the details they shared with you, landlord verification (if they have a previous landlord), credit check, and background check.

Quote from @Cathy Li: It's a white label software built on go high level.

There are systems and software out there that can assist with key word management and campaigns etc. but they are not cheap. 

If you’ve got property and aren’t well-versed in an accounting software I’d recommend starting with a good accountant and quickly adding a good bookkeeper.

Estimating is both art & science and FWIW most professional estimators rarely get it spot on, usually operating within a Delta.There's tons of estimating books, software etc.

Most softwares will list (at least) name of guest, stay dates, ADR, and revenue to owner.

Going forward it would be good to specify that your property management software is the only acceptable method of payment in your lease (if not done so already).It might also be a good idea to check the pre-existing lease to see if they have any clause like that (sounds like you already did that).