Personally, I think curb appeal is low on the list for MTR success.

If the person or service is fantastic, there is potential for A LOT of business (~160 turns per year).

Personally, I rent out properties that I personally would live in- and I carefully screen my tenants.

@Ashley DennisI think people should consider owning real estate personally (tax benefits) and inside of their retirement account. 

What they said^^^^No obtaining a permit for a structure that will be a habitable dwelling is just plain stupid... sorry - nothing personal.

Assume the property is well located with average appreciation ...Selling some properties of mine and just curious what the average investor buyer is thinking ...Thanks guys I wouldn't personally recommend deliberately buying a property you believe will be negative cash flow.

If you can't keep control of your personal finances, you are highly unlikely to succeed in real estate investing.

I do want to separate my business and home expenses, but even if I had a business CC, I'd still have to pay it off with my personal money because its going to be awhile before I'm making income.

There is much debate about that but ideally you’ll talk to an experienced agent who can advise based upon experience as compared to an experienced insurance sales person who can sell. 

I wouldn't be selling in this market personally, so if you don't sell the SFR and you really want to do this, a DSCR cash out refinance on the triplex, or a hard money 2nd is your only option to get the liquidity needed to make this move.