30% down 30yr mortgage How did you add value to the deal?

The increased depreciation deductions can offset your taxable income, including gains from the sale of the previous property.

Most of the time, the town will not want you to do it.

I am renovating a walk out single family home to have a separate legal unit in the walk-out basement. 

There are good QI's that will help you navigate the options.   

Love to hear what the feel on the ground is. 

While the ordinance went into effect on October 10th, the large response to the Call For Action yielded an initial ‘grace period’ of enforcement until November 9th.Below is the summary of the ordinance.

I'd start by talking to a few realtors to see how much extra you'd get with the renos vs the cost.

Quote from @Ray Watkins: What is the best way to finance a newly built, entirely new home on a property?  

I would pull up outdated properties on the market, and walk the properties with the contractor to get bids on what to do..