It is a comprehensive system on REI - kind of a one-stop-shop type of book. 

I'd be happy to send you a comprehensive list of contacts that can help with building out your network and team here.

I'm currently exploring opportunities in tax lien auctions and I'm wondering if there is a website similar to Hubzu or Auction.com that provides comprehensive coverage of tax lien auctions across multiple states in the United States.

Once we noticed there was interest among a few investors in this area, we developed a comprehensive plan to acquire every vacant lot and home in the area.

There are so many so be sure to filter by your location. 4) Review this comprehensive 64 page deck on the state of the 2023 housing market (in your resource page as a member of BiggerPockets!)

How to Invest in Real Estate by Josh Dorkin and Brandon Turner: If you’re not sure which strategy is right for you, this book gives a broader overview of many strategies to help you choose your own investing adventure. 

As many of you may know, Assembly Bill 968 (AB-968) has recently been passed, which mandates a comprehensive disclosure of repairs and renovations from sellers who flip one-to-four-unit properties within 18 months of buying them.For those who are not familiar with the details, AB-968 requires sellers to disclose all repairs and renovations performed on the property during their ownership period.

There are dozens of good books out there that will give you a basic overview but based on your description of skills/assets you will probably learn little more than you already know from your own experience. 

I recommend googling "(City name) comprehensive plan" every city has a city plan that shows where their major commercial projects are heading. 

After a long search for comprehensive software, I decided to give "buildium" a try.