Mortgage restriction: primary res turned rental

Nothing it has to make sence though for the underwriter and you do sign/apply that it will be your primary. After you do it once, it does become more difficult.

Restrictions in the mortgage that could cause the mortgage to technically be in default if the property changes from personal residece to investment. Then, the Lender would have the option to call the entire loan in.

So when people rent out their places for a few years, (either because they're living abroad for a while, or while they're trying to sell) technically the bank could at any point call the loan in?

Seems like renting happens all the time (in nyc).

nothing. However, most banks will check to see if you currently own a residence/ have a mortgage. If they find this to be true, they push you into a loan product not for primary residence owners.

Yes, technically. Of course, they have to be caught and the bank has to care. Most banks have enough issues with defaulting loans so they may not care as long as they are being paid--but the risk is still there.