Moving forward will need to do a lot of the leg work before we buy the property (surveying, architectural, structural)- Ask for a longer closing time to accommodate the above- It's extremely important to get bids from many different contractors as sometimes they vary significantly.

The survey we was able to see two other houses on the block that have similar drainage easements.I don’t really understand how the house could have been built on top of the easement in the first place. 

I like to survey the market to understand how to design my unit to appeal to my target tenant and to ensure the highest rate that the market supports.

This will give you a clear understanding of the timeline for the lot division and when it should ideally occur in relation to the construction process.Cost Considerations: Dividing the lot may involve additional costs such as surveying, legal fees, and administrative expenses for obtaining the necessary approvals.

There is no datum point on a moving house to determine what is going up and what is going down unless you survey from an exterior benchmark, which is usually not the case.

You get into survey issues and proving that tree is causing the damage.

I was only going to market it's availability and perhaps send a survey by email to get the information needed for a tenant to qualify. 

@Brian Wood I was planning to go with Cozy which has been by far the most popular software people used according to my "survey" :-).

You also mentioned having an architect help you with a feasibility survey -> if you were happy with their service, can you please give me their contact information?

Dig a 16-inch deep series of post holes next to your driveway on your property's surveyed edge, as close as you can to the sapling, Fill the holes right up with high-concentration glyphosate weedkilling solution.