There are certain qualification requirements that you must meet, however it will give you more options and more control.

Personal questions are made in qualification of the tenants ability to pay, contract and in keeping with the terms of the lease. :)

My highest price point is $300K and I have secured qualification for lending.

You can use the rental income for qualification. 

There are a number of qualifications we look for in an applicant such as: Leadership or Managerial ExperienceHospitality/Food/Retail ExperienceInvolvement in the local communityCustomer Service ExperienceFinancial StabilityPassion for the brandProven track record of successBusiness SavvyTwo Partners**Please note Tim Hortons franchises only to individuals who will be hands-on operators, not to corporations or passive investors.

Also what minimum qualifications do you set?

Having the right PM software, hiring people with the right qualifications and experience.

My opinion is that, particularly in Dallas, most of the losses were actually the result of a lack of available funding or the changes in qualification for funding. 

Most lenders will also make you aware that you are allowed to shop within 30 days of your initial pre-qualification without your credit score being affected any more than it already has.

As a primary residence, you will have low down payment options but would likely have to look at the periphery of the hot neighborhoods to find something that works (for financing qualification as well as your budget).