The biggest thing you can do is build your CORE 4 which consists of getting a great realtor, contractor, property manger, and attorney wherever you choose to start investing.Let me know how I can help you get going

One of the biggest mistakes is to focus on solely cash flow and achieving a BRRRR.

The no cash component will be your biggest hurdle. 

Biggest thing here is they wants a house big enough for 2 separate living areas and house cannot have more than just a few steps to entrance and hopefully rear entry/etc.

My biggest tip is to save way more that you make and then buy a 2-4 unit building and use a 203k or homestyle renovation loan to do some rehab and add some instant equity.Also, Network as much as possible and get comfortable approach any one and asking lots of questions. 

The CRM is awesome for pinpointing and keeping track of random houses you find that you make want to look into later.The biggest Con seems to be that the software can be very clunky and almost feels like it is in beta development at all times.Which company do you like for bulk "Street View" postcards? 

Your biggest variable is going to be prop tax, and it changes from street to street. 

This is the biggest thing happening in the world right now.

However, one of my biggest concerns when fixing homes is knowing when to use permits.

Zillow is the biggest real estate website but it helps listing on other sites.