My question is how do I go about serving this notice, are there any secrets that'll help this process go more smoothly? 

This area had a history as not so up and down and more smooth growth. 

Let her know you want the move to go as smoothly as possible for her.

Your local non-profit developer will probably have a much better bead on what that could mean for you locally (it could make getting those funds much harder in a C neighborhood), as well as the fact many non-profit developers can also manage subsidized complexes for you smoothly, as they have plenty of experience in the additional documentation, rules and inspections that Nicolas mentioned. 

If all goes smoothly, the  title company ends out the necessary documents to the buyer and seller and proceeds with closing.

Make sure you use a loan officer who knows how to structure your deals properly so everything goes smoothly.

Don't let any of your folks not go through that professional, so as to avoid things getting quirky, and everything should be fine.Again depending on the type of properties you are looking to work with, the whole process can be fairly easy and smooth.

Do a no-nonsense deal with a broker and close smoothly and quickly.

Being organized and professional in your loan presentation and application docs will take you a long way to a smooth and successful closing.Good luck!

You should also be lenient with late fees until this process is complete to ensure a smooth ride going forward.