I also want to learn about purchasing properties with tax liens / bankruptcies / foreclosures.1.

Most on this forum can't even come up with a downpayment, you can't expect them to ride HOI/tax increases, vacanices, etc., with lower leverage and less cash flow on a property.

My duplex - built 1989, 2,060 sf, 2 bed/bath, 1 year old roof, value if I subdivide (county already approved) and sell each separately $150k each ($300k total)Investor duplex - built 1995, 2,300 sf, 2 bed/bath, 5 year old roof, value around $310kThe investors initial request was for an equal trade and they would pay realtor fees, which I replied wouldn't be equal due to buying/selling costs (recording fees, title insurance, closing fee, survey, inspections, loan fees, 1031 fees, accountant fees, repairs), taxes would increase due to new sale price, I'd trade a 3.75% mortgage for a higher one, and I'm on the 10th year of a 30 year loan so resetting that to a new loan would restart amortization and pay more towards interest.

Low barrier to entry, low taxes, landlord friendly, and areas that appreciate + cash flow. 

Starting with a smaller property or a few fix-and-flip projects can help you build equity, gain credibility with lenders, and better understand the process before scaling up.Securing funding for larger projects can be challenging without prior experience, but options like hard money loans might be worth exploring.

Couple other things to consider, property / school taxes are high, and tenants have lots of rights.

Also, how does one assess whether or not one can turn a profit after paying principal/interest, insurance, and taxes each month?

Getting a DSCR of 1 in some of the higher tax counties of Georgia is tight, but we've been able to get through them.

We all do the same thing, we just call ourselves different names and carry similar but different licenses:- CPA - Certified Public Accountant- EA - Enrolled Agent - Accountant - Tax advisor - Tax strategist- Tax consultant - Tax plannerIt all means basically the same.

Might be an additional cost there.If units are updated, capex items look good, leases and tenants look solid, and there are no other regular expenses besides the 5200 in insurance/property taxes then I like this deal.