Hope you're able to contribute and receive valuable information from these forums!

Some tools myself and others have used: - Skip tracing- Mailers- Data aggregators like PropStream, PropertyShark, etc. 

With your engineering background maybe partnering with someone with building or other RE experience could be valuable.

As someone that manages 30+ rental units, it would be immensely valuable to understand: 1.

Hello Biggerpockets colleagues,I am at a crossroad. As my real estate portfolio has grown over the years both in terms of the number, types and location of the properties, including across states, I have continued to ...

I am on the product side so if you ever want to discuss tools that are missing or ways that we can add value to you or investors my calendar link is above.  

I believe that @Jonathan Greene has a lot of valuable experience to share with both newcomers and seasoned investors, but he can sometimes come across as off-putting.

Be sure to check out the free tools BP provides to help analyze deals you may have and also market insights.

I'm currently working on a tool that will help fix and flippers and BRRRR investors with managing their projects and also creating a service for investors to pre-vet and replace labor quickly.

You can use a free tool like TenantCloud.