The details of this agreement, which may be adjustable, may include interest rates, loan durations, and repayment plans.

The state of investment is TN.The sale of “investments” which includes providing financing either needs to be registered as a security or needs “an exemption” from registration.  

Most PMS systems have a channel manager component included, but true channel managers are more robust and usually connect to PMS. 

Also sharing an article I published on BP last year on this exact topic - all the options for BRRRR Loans (Including the all-important cash-out refi) and pros/conshttps://www.biggerpockets.com/blog/brrrr-loans-what-are-the-...Generally - DSCR Lenders will be best for LTV and speed (70%/75% generally 6 months, but some can do 3), while conventional will have lower rates/fees. 

If you have a fully paid off vehicle, you won't have the mortgage interest deduction that other taxpayers will have.There is no 'both taxes', there is one income tax form that includes all your income.You will report your rental income and wages on one tax form.

Does this include the premium you are paying the seller to consider seller financing?

There is a lot written here on BP about tax sales,  including a lot of detailed information about MD tax sales.

I'm wondering though, if I market them as lease option/rent to own, will a PM show the property, handle paperwork including the option contract and then manage the property or does that require a real estate agent?

Face eviction through the court, in which case I will seek a judgment for all unpaid rent and other charges, including attorney fees.Give that to her in writing and make her sign her choice.

@Marc Massicotte, you'll want to include a stipulation addressing the closing date since you're at the court's mercy.