Their offering Turnkey section 8 rentals that they've purchased, rehabed, qualify for Section 8, get it leased, and then manage it for you.

Would the landlords out there recommend providing extermination service to make tenant happy, or remind her that the home was rodent free at beginning of her lease.

The students have been allowed to live all over the west side of the city, and student rents stayed pretty steady (though they have increased every year that I've been doing leasing). 

For your existing primary, you will need to have it leased with the security deposit and first month's rent collected.

Have a good lease with "teeth" - late fees for late rent, occupancy rules, pet rules and etc. - and do not violate your own lease by being too easy, or very quickly you will not have any lease at all and your tenant(s) will do whatever they want at your expense. 

This could be a great way to get started as you'll be at the property everyday and by living in the property not only will you be there firsthand to oversee the work being done, but you may also find new potential issues while living there.If you're looking to do this, I'd recommend a 203k loan to purchase the property and get some rehab funds. you'll just need to live in the property for a year before being able to lease it out to a tenant.

These requirements will apply even if you do not have a formal written lease agreement. 

If you can have a lease lined up for your unit they shouldn't count your current mortgage against you and could use that "potential" income as income on your DTI. 

That's a thing in leasing NOT in selling.

Extending lease might be best bet.