If you need to cover utilities, the numbers tighten significantly, making a lower purchase price essential.Let me know if you have any further questions or want to explore these numbers in more detail—I’d be happy to help! 

The problem is no one book is going to be detailed enough for your specific state and county.Right here on BP there are lots of discussions about tax liens.

This will provide you with detailed information about the area's crime statistics, helping you determine whether an incident is an isolated event or indicative of broader neighborhood safety concerns,Take a moment to check it out, and you'll feel more at ease knowing the facts,

If you’re interested in more details, feel free to reach out!

@Thomas YoungmanThank you for such a detailed response.

Details can be found at https://www.biggerpockets.com/forums/521/topics/1224992-brew... 

Always have a detailed scope of work and a price in a written contract.  

I assume something like this is more than you want to tackle for a 1st quadplex (https://www.realtor.com/realestateandhomes-detail/241-W-King...), but what about this SF for a BRRR (https://www.realtor.com/realestateandhomes-detail/2101-Arapa...)? 

Get the details here I'm really looking forward to learning from some of the best real estate educators, and then being able to take those lessons to smaller accountability groups to be able to discuss putting them into action with motivated peers. 

For a detailed explanation, see an earlier comment by @Ashish Acharya.Assumptions are not controversial, either.