As a violation it provides the mortgagee with the OPTION of accelerating the note - with all the proper notices and procedures for the state of property residence. 

I spoke to the city and they are considering condemnation procedures.

Your biggest risk if you execute the plan will be running out of money in retirement, either due to natural longevity and/or later health issues draining your resources.  

Now that you've expanded into a new venture, it's only natural that certain people are better suited to certain activities than others and a good accountant is no exception.

There seems to be a lot of speculation in the post and the answers provided can only be speculative in nature given the information.

if Bigger Pockets stands firm on their money making procedure with  Pace’s book then understand that Bigger Pockets is not the place to attack folks for doing sub2 or talking about it. 

Any different procedure do we need to do for section 8?

I suppose legally you could, if you fully disclosed the non arms length nature but, no lender in business, or wanting to stay in business would do it.At the end of the day, what you want, while it may make sense to you and your parents, just isn't a scenario that happens.  

It's monopolistic in nature especially when it comes to transaction involving a commission.

You also have to be with an agent who fully understands the nature of zoning and regulations.