I understand that everyone's scenario is different and hence, different opinions.

I understand 10% would be more on aggressive side, least I am looking for is better returns then current CDs which are offering almost 6%. 

So, you're looking to have a clear understanding with every member of the team.

Can someone check my thinking/understanding of seller-financed tax implications? 

i lived in Northern Virginia for 16 years and still own property there, so i totally understand the desire to find a lower cost market to invest in. 

Karen provided expert guidance, throughout the transaction, not only to me, but to the lender, the closing agent, as well as the seller's agent. when issues arose, as they sometimes do in our business, and I became frustrated, Karen (the psychologist) helped me stay positive and to understand the situation from the perspective of the other parties involved.

Understand the fees involved and calculate the total cost for an entire year of management so you can compare the different managers.

Understand that this and SF's will take a lot of time and effort even if you hire a property manager. 

My understanding any insured mortgages only eligible for 25 year Amortization. 

If you decide to tell them no.You could choose to tell them no in a way a Social Justice Warrior would understand.