@Alec JacobsI would use platforms like Zillow Rental Manager or Avail for rental management, for listings and tenant screening, and tools like Cozy or Buildium for rent collection.

Tools like automated messaging and keyless entry can really streamline things. 

For estimating rehab costs, try using the BiggerPockets Rehab Estimator Tool or get quotes from contractors through sites like HomeAdvisor or Thumbtack.

@Kyle KlineMy Take on Cash Flow: - Cash Flow is a hedge against corrections.

Thanks Mia - you are correct. 

I'd ask around some GC's that are higher level they may have some decent project management/financial tools if they're at scale.

I'm feeling the delays I've imposed on myself in my RE investing, so I'm trying to correct my trajectory to get back on course ASAP.You may not realize it, but you just stated your goals.Number of properties, no matter how you arrive at a number, is never a goal. 

That's why my friend—who's a real estate investor—and I decided to develop our own tool.

Buy an empty lot in a development, in a nice area, at the "Correct" time early in the development.D. 

Correct me if I am wrong, please!