I am buying the home for possible future relocation/frequent retirement visits, new residency/tax filing, and because my sister lives there.

Prepagent also has a massive pdf file for all of the vocab, as well as flashcards and vocab study guides. 

I think there is a deemed sale from one parent to another but since they are husband and wife filing joint return, I don’t think there are tax ramifications but would appreciate thoughts/ advice here.

In most cases, the borrower would file BK and unsecured creditors would largely be wiped out or take a serious haircut.

If you remove yourself from the deed, you are gifting your ownership to your dad which may require the filing of a gift tax return.

They can only regulate if there is a complaint filed by a neighbor.

A foreclosure shows up once the notice of foreclosure has been recorded, so their credit shows a foreclosure when the paperwork is filed (that's when you learn about it) the damage is already done by then.

If you don't file, they may never take you seriously and essentially force you to have to file.

At what point do files matter to me as a buyer is it the date of the mortgage or the date of the foreclosure because I noticed some foreclosures can go on for a long time which gives the property more time to add more liens and such to the record pull? 

I file jointly and we are able to put enough of our income into a retirement plan that we can be below 89,000 in income (including rental income).