Thank you for the comprehensive reply Frank!

I have a certain ratio per100 headcount (not households, not age, not sex) I use when decidingto buy or build in a town.

Average household income in Albuquerque is $83,000, with a median home price of approximately $365,000.

People are buying everything online now - groceries, household appliances, even cars - without actually inspecting the product before they buy it.I guess companies should do away with refund policies, satisfaction guaranteed policies, etc. 

A person living independently or a group of persons living as a single household unit using housekeeping facilities in common, but not to include more than three persons who are unrelated by blood, marriage, adoption, or foster-child status, or are not Life Partners.Splitting the building into two 4 bedroom units is not allowed. 

I’m especially interested in finding a tool that provides comprehensive data for both short-term and long-term rental analysis, along with market trends and financial forecasts.Your feedback would be incredibly helpful as I narrow down my options and choose the best app for my investment journey.

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? 

Hey,I’m transitioning from single-family to multi-family investments and looking for a comprehensive, practical course.

Based on the value of a property you can likely get away with a inexpensive desk top study such as condos and you will require a more comprehensive engineering study for larger properties like a 4plex.Desktop / modeling options are sometimes good for smaller residential like you mention. 

If you want to make a career of investing you get "one on one" training that is comprehensive, like at How I Made Millions Investing In Real Estatehttps://www.biggerpockets.com/forums/311/topics/1146250-how-...that should be in the $15k to $20K range and guarantee you'll buy properties or your money back.Or, if you want to learn basics and "dabble"There is a "community" that runs about $8k to $10K that says they have online videos and other community members to answer your questions.