. - ARM's.

I would NOT in any way endorse or speak to what tenant is saying of disability or herniated anything unless I have a Dr document explicitly stating this, no-way, those words are radioactive.  

Just a small bit of information to arm yourself in regards to the lease and your wife's sister's DTI.

The contracts all but always today explicitly state a severance of this is a violation or transfer and thus enacts some form of repercussion potential.

., but it might make sense especially with Roth IRA or Roth 401k contributions.It gets tricky since you need a bona fide business to business relationship... doing other property management and / or handyman services helps create an arms-length relationship (and rise to Section 162 definition of being a business and not a self-dealing transaction).

Evictions can be more difficult as this person is not recognized on the lease explicitly.

To arm you with a little more knowledge, the average 5-year rate of appreciation for Tampa is 9.2%, while the average 5-year rate of appreciation for Orlando is a little lower, at 8.56% That said, Orlando is a tourist hub, so my advice would be if you're looking for something short-term (AirBNB), finding a place in Orlando around the attractions could be the way to go, but if you're looking for a more long-term investment, Tampa may be your best bet.

If you have a five year window you should not be doing interest only, ARMs, etc. do a 5 or better a 7 year financing term.  

Once the buyer and seller agree on this scheme it's no longer an arms-length sale.

This is really an accountant question as to how you can structure to use your RRSP's as an investment with it still being arm's length away so that you do not get taxed on it until it is used for the purchase at the end of the rent to own period.Best Wishes