You don't want to organize it, spend many hours maintaining this system, and then months down the road hear from your CPA that they cannot use it.

YouTube is probably full of great content on budgeting and all the other functions you listed.

I’m curious how everyone is staying organized throughout the year (especially with tax season always lurking).Are you logging everything manually?

For example, under the “Refrigerator” column, the following information is typically stored for each unit: Manufacturer Model Number Serial Number Color/Finish Purchase Date Warranty Status/ExpirationThis structure keeps all key data organized, easily accessible, and tied directly to the individual rental property.

I have Quick books with a partner on our LTR properties and I hate how expensive it is.My personal properties (over 30) I easily keep up with everything in Excel and my CPA says I am one of his most organized clients.

Cheap land here is not a function of unusability.

For B-/C+, I would think function over form. 

Quote from @Joe Daniel: Quote from @Dave Harlan: Quote from @Joe Daniel: Hey Dave, lots of investors build their buyers list by tracking activity from local public records especially recent cash purchases, LLC transfers, and repeat buyers in the county.It helps you identify who’s actually buying right now instead of collecting random emails.If you ever want to talk through ways to source or organize that data efficiently, happy to share what I’ve seen work well for others. 

- I am a real estate agent stepping into the property managment space and like to stay as organized as possible.

Once you have a short list, get an account with each one and run them through the wringer to see how they really function.