You want to make sure that your house is getting in front of as many people as possible to get premium pricing. 

On the surface it makes sense, but why would it be double the premium.

Many turn key companies will sell them to you at a premium.

Some other interesting side-effects: properties right now elevated in value by closeness to commuter rail stations may lose that premium if the self-driving cars make mass transit obsolete, and municipalities are going to compete with each other much more strongly on all benefits OTHER than their location (e.g. school quality, property taxes, ordinances, crime).

Of course not, they offer a safe long-term investment in relation to many markets and therefor pay less premium. 

Maybe you need to get a "premium" for it as you have spent the time and effort to create the portfolio? 

Tlo, beenverified, Whitepages premium, spokeo.

The premiums are reasonable and it affords a similar protection.

Plus, it seems that the tenant buyer may be willing to pay a premium rent rate for the service you are providing.So if I have a relatively small amount of capital (let's say 30k), and I can collect ~15k per lease option property, at 5 properties that's 105k.

@Daniel Maneyworst case scenario - You will not have a problem getting insurance, but the premium could be 10%-25% higher on the next policy.