Another has a sliding scale on rates, max credit, and percent ratios depending on your demonstrated experience.The pro I see on a LoC like this is you at least know how much the vender will loan you.

ROI/COC infinity.Repeat - Since you have no money in the deal, you will want to repeat the process and scale your investment portfolio.Traditional Rental      Buy - Purchase the property with 20% down.Rehab - Only minor rehab if any.Rental - Select a tenant and rent the unit at market rent  Refinance - Not necessary since the purchase included financing. 

I personally like to use leverage that way you can scale your investment. 

It is synonymous with decrease in profit.1st of all lets scale down to one possible scenario.  

I'm wondering how you determine the depreciation on a rental.Let's say you buy a property that was just rehabbed and buy it for $100k and it gets appraised for $100k.You look at the tax assessment and it says the land is worth $10k and the improvements is worth $50k.When you depreciate the value of the property would you do $100k - $10k = $90k or would you scale up the land value with the new appraised value?

Brilliant way to scale 

I am 38 years old and recently sold a manufacturing company. 

You may also consider a manufactured home. 

Depending on size, you may be required to, typically with large scale, multimillion dollar assets.For smaller assets, i.e. single family, duplex, fourplex, you get liability protection. 

You get into a much larger asset that allows for a certain scale and efficiencies typically not seen in single families.