My question is how much of a price change should generate qualified tenant calls?

Qualifying for a mortgage is a little tougher in Canada, however the rate for mortgages in arrears is well below 1% (default is less half of that).   

Most likely will not be able to qualify for the loan on his own.

Most likely will not be able to qualify for the loan on his own. 

I need advice on buying a 3 unit in Florida with a partner. I have the credit for the financing I don't have enough for the down payment and rehab. So I'm thinking of taking on a partner who has the cash but does no...

., corporations, partnerships) that are owned by parents or children do not qualify"https://www.sccassessor.org/index.php/tax-savings/...

We will be the only rental on the market in our area that has a private pool and for that reason I am concerned we may have a ton of interest from folks that may not qualify.

It wouldn't be "owner financed", they'd make you qualify for a regular loan just if you were buying from someone else, and you'd get a loan just like anyone else, for any other property.  

Sell to "Qualified Park tenant" and Pass income verification and prescreen to pay me via payments.   

If I had qualified for over $25k the rates would have been better.The process is just like applying for any other loan except that a HELCO is secured by your house.