We use MRI resident check software.

Occasional flip houses, and a lot of construction on current long and short-term holdings.I generally use Buildium software for the property management but I don't keep up with the books nor have the time to reconcile at months end.

I currently work as a software engineer and have little experience with real estate.  

If one has a software system that eliminates human error, great. 

Looking to run internal analytics on my portfolio and have found both of these softwares.

You also want to account for your time, you also might add software or services that cost money.-5% Maintenance and Capex - realistically, this is too low.

Bathrooms, toilet rooms, closets, halls, storage or utility spaces and similar areas are not considered habitable spaces.Habitable space requirementsCeiling height-RequirementsR305.1 Minimum height.Habitable space, hallways, bathrooms, toilet rooms, laundry rooms and portions of basements containing these spaces shall have a ceiling height of not less than 7 feet (2134 mm).Exceptions:1.For rooms with sloped ceilings, at least 50 percent of the required floor area of the room must have a ceiling height of at least 7 feet (2134 mm) and no portion of the required floor area may have a ceiling height of less than 5 feet (1524 mm).R304.4 Height effect on room area.Portions of a room with a sloping ceiling measuring less than 5 feet (1524 mm) or a furred ceiling measuring less than 7 feet (2134 mm) from the finished floor to the finished ceiling shall not be considered as contributing to the minimum required habitable area for that room.Floor space- RequirementsR304.1 Minimum area.Every dwelling unit shall have at least one habitable room that shall have not less than 120 square feet (11 m2) of gross floor area.R304.2 Other rooms.

Software/website/private contractors, around $40K/yr. 

Most investors on this site are residential with a few commercial sprinkled in so when BP develops software to use that is likely the main focus residential first.There are tons of software for commercial analysis to use out there. 

 We use buildium property managment software which allows tenants to set up online rent payment via ACH.