I started to apply the techniques others have used to get going like sending out flyers.

You can always put up security cameras that record everyone going in and out. 

It might be worth looking into mitigation techniques.

When posted the question,  I was more concerned with how easy/difficult it would be to secure conventional loans after having multiple mortgages.  

The coursework taught me obscure laws and weird measuring techniques that will almost never come up in real life.

Im pretty sure no individual party will be able to secure a loan of this size.

From any investors whom have had experience with wholesaling high end homes please put your hand up and I would greatly appreciate your valuable time in giving me some friendly advice.My question is:  What type of earnest money deposit will 'me' the wholesaler have to put down to secure the deal with a motivated seller of a home which is over $500K and reaching to $3MM?

My professional background is in information/computing security and for many years I conducted audits of corporate information security practices/postures.  

If I had to pay a contractor to replace the door, it would count as additional rent, per the lease, and if I waited until they left, I would have to deduct from the security deposit.

The Fed can control short term rates, but the market controls mortgage backed securities and mortgage backed securities determine mortgage rates.