Something that was partially completed 15 years ago wont surprise me if its cheaper to knock down and start fresh, especially if its a lower price point home.

Being $100-200 off could destroy your profit margins.

How to take alot of loans, im not from america so it might work bit different for me but what is general procedure also if i take on example 30y loan with like 20% downpayment can i take another one if i have like 20% downpayment for new one or banks wont give me another loan till i pay this one off.

You don't need to buy properties that are totally destroyed and in need of major renovation.

  - hand written letters: if you can't reach them by calling, and the property is vacant, or the owner doesn't live on the property (it's a rental), get some colorful, invitation style envelopes and hand write a letter to them, telling them you are interested in making a cash offer on their house, closing on their timeline, and as-is, meaning they don't have to fix anything or even move anything they don't wont. 

Most sellers wont require proof of funds.

Finding a lender/investor to put all their eggs in a basket, with somebody who has little to no experience just wont happen.

An exceedingly small number of people are capable of operating completely autonomously and those that can still require clear and effective tasking; a skill that most leaders lack. the bigger hedgefunds though wont buy low end rentals they want or are buying that solid B class at the median price point.. we saw that in ATL when they first started buying courthouse steps and we were active there.. they tried some lower value C class and quickly left those behind as they realized being a big machine they  were not feasible from a management standpoint. 

They turned it into a rental and the current tenants after 3 years destroyed the place.

The L2O will lock me in though, wont it?