You also need to be able to rely on project management skills to manage the project to stay on track.

Also, are there any recommended way to keep track of the rehab projects in long distance?  

I do track the progress of savings/expenditure and hope to someday see a savings someday.

The good news about BRRR is it will fast track your investing goals.  

Can I ask what sort of property management program you use to keep track of each of your rentals? 

They use tools to monitor listings and may even check other booking sites to track this.

To keep everything organized, I swear by Asana for task management; it keeps me on track.

Are you tracking the leads in a physical format?

If entities are disregarded, you can keep up with more than 1 in a single QBO account using the location/business feature to keep track of them separately.

For instance, if the neighboring unit has a shut-in chain-smoker, or the house has railroad tracks behind it, it is definitely better to let a lead know and lose them than to not disclose, upset them and lose them (after they leave a nasty review).I'd agree with Jonathan that even late complaints need to be taken seriously, and barring some obvious malfeasance, I would just take the word of the resident and fix the issue.