Ultimately it’s all math problem for each property in each of these cities and if the risks will pay off

Your ARV should be based on worst case assumptions about the future market (and in some areas, the future market will likely be substantially lower than it is today).As for renting it out, I'm not familiar with the rents in your area, so you'll want to do your own thorough market analysis of that...however, at face value, it sounds like it would not perform well...For instance, if you bought it with an owner occupant mortgage at 5% down at 6.7% interest, and had an additional 50k of debt for the rehab, the monthly debt service would likely exceed your rent income if the rent is around 1600/mo (but that's just rough math--obviously, you should run your own numbers). 

How much money do you need for the following, assuming all single family homes:1) 150k investment house2) 250k investment house3) 500k investment house4) 750k investment house5) 1mil + investment house.For option #1, my math was the below if I want to buy in an LLC:$37,500(downpayment)$5,600(approx 5% for closing costs on remaining loan amt)$6,750(rent reserves assuming 1500/mo rental for 3-6 months)$10,000(capex reserves just to start)$1,500(LLC formation)$2,250(45-day estimate to rent out property losing rental money)$1,500(1 month payment to property manager for tenant placement)$1,800(monthly management fee 10% of $150 for 12 months, paid monthly but allocated annually for budget)So just under $67k.I imagine this math plays linearly to other properties at different price points?

Money is more than just math and spreadsheets - it's dopamine, serotonin, and cortisol as well.

Look into the comps, and do the math.

The questions you're asking seem to be very vague and indicative of not having done enough homework already (not to sound too blunt, but just trying to help you avoid making mistakes). - Selling a property for $462k after buying it for $300k only 3 years ago may be indicative of remodeling work done in the home. - It could be that the rents being charged are below market, but you don't decide rents based on the purchase price of the home.

I understand the principles behind the math, but still prefer to follow this path.I would appreciate links to forums, blogs, or books from investors who practice or promote strategies for REI with your own money without leveraging.Thanks.

Give us a reason to do something besides wait for it to go to auction and pick up it there.Show us the math!

If my math is correct, that would be 0.0000015% of visitors that have filed a report on RipOff report.com Yes, there have been some complaints left on other sites.

You'll have to do the math or ask a mortgage broker.But let's say my assumption is incorrect and that you could tap the full $200K equity at cash-flow neutral and DTI isn't a problem.