Is there a specific endorsement for this strategy?

They may have to endorse the policy for the additional use or they may not.

@Dylan McLauchlanLove this quote and will use it and I endorse it: At the end of the day if a deal will make you money, and is worth the headache take Nike's advice and "Just do it."

Feel free to DM me if you need a lender recommendation, or take a look at the FHA 203(k) endorsement report to see which lenders are doing substantial FHA volume.Good luck and please keep us posted on the progress of your search!

I believe that while it is sometimes a title searching practice to come off a prior owner's policy (not one I endorse), doing it off a mtgee policy (which the 2013 policy would be) is generally not an approved practice.

Its possible the existing policy may be cancelled if you are doing construction there, it could be unaffected, or you may be able to endorse it for the new exposure. 

"In its complaint Friday, the FTC said that Utah-based Zurixx LLC would hold free real estate events endorsed by HGTV stars, including Tarek El Moussa and Christina Anstead of “Flip or Flop” fame"https://www.abc27.com/news/us-world/entertainment/ftc-halts-misleading-real-estate-seminars-with-hgtv-stars/?

  =)Say for example you buy a turnkey property (I'm not endorsing it, just bringing it up as an option) and you have it under property management. 

I'm not sure I'm going to get this 100% correct but, basically an allonge is an endorsement from the previous lender that assigns the mortgage payments to the new lender/purchaser of the note.

Trustee endorses check over to beneficiary.