As mentioned by another contributor, you really should read everything posted on Travis' blog.

@Zeliang ZhengHere is a good article worth reading: https://www.biggerpockets.com/blog/invest-for-real-estate-ca...

You can learn how to join here:https://www.biggerpockets.com/blog/prop-management-lead-bund...

I suggest reading this BP article on the core 4.https://www.biggerpockets.com/blog/core-four-real-estate-teamIt's risky to start out with a BRRRR, especially if you don't have capital for reserves. 

CHeck out my blog at the link below for a summary of my experience (if you havent already).

Here are some resources you might read for PA.https://www.macdonaldillig.com/judicial-tax-salehttps://www.taxsaleresources.com/state/pennsylvaniahttps://www.legis.state.pa.us/WU01/LI/LI/US/PDF/1947/0/0542....https://www.indianacountypa.gov/departments/tax-claim/proper...https://www.biggerpockets.com/forums/311/topics/122546-aquir...https://www.vinsko.com/blog/2022/08/tax-sales-sheriff-sales-...https://phillysheriff.com/real-estate/conditions-of-sale-for...https://www.curleyrothman.com/blog/how-do-tax-sales-work-in-...https://www.legis.state.pa.us/WU01/LI/LI/US/PDF/1947/0/0542....Here are some resources you might read for MD.https://www.taxsaleresources.com/blog/expert-interview-with-...

Here are some options I found https://www.stessa.com/blog/find-tenants-online/

If you're set on investing out of state, I'd recommend reading this article by David Greene for starters: https://www.biggerpockets.com/blog/core-four-real-estate-tea...If possible, it's a good idea to visit the market you plan to invest in to familiarize yourself with the area and it's also a good way to network.

I was just doing some research on Atlantahttps://tomo.com/blog/7-best-neighborhoods-in-atlanta/Invest Atlanta also has funds available for several different types of buyers and developers.

Great beginners guide: https://www.biggerpockets.com/blog/wp-content/uploads/2022/08/Ultimate_Beginners_Guide_BiggerPockets.pdf3.