Too many times starting off I would get excited over a verbal agreement, a written purchase agreement, etc. only to have the deal fall through at numerous stages of the process (even the day before closing). 8) I've learned to be a lot more understanding of my tenants and treat them with strict rules across the board but still in a friendly way so there is mutual respect.

Anyway, you have to treat this like a business. 

You need to treat the LLC like another entity.Meanwhile, I don’t see how this is tax efficient...

Traditional LLCs are treated as disregarded entities, meaning the taxes just pass through to your personal income via a K-1. 

On the occasions where I do have to make deductions, I do it only for legitimate damage or money owed and I do not nickel and dime them for every little thing.Ultimately it just comes down to treating people fairly and how you want to be treated in this business.

As a general rule:VA Loan - The WDO needs to pretty much be perfect.FHA Loan* - Infestation must be treated and all visible damage must be repaired.Conventional Loan* - Nobody cares.

In some areas the duplex is sold as two separate units. they are treated as a single family house, not a condo.

3_New investor so this year 1 purchase (buy, renov, sell) will the profit be treated as Ordinary Income or Captial Gains?   

@Ana Vasquez IRS (And the state of Texas for investment companies) treats all three companies the same for tax purposes.

Do your homework and treat the area like any other?