As long as it is solid hardwood...or engineered with an actual hardwood wear layer that can be refinished, the sand off the old varnish and some of the wood and then put new coats on. 

I'm a civil engineer and deal with zoning/planning by-laws every day so I'm pretty familiar with how the processes and rules work.

There are a few practitioners who can hep setup a High Cash Value Par Whole Life Insurance Policy with Dividends as the main engine.

When building on this lot I would over engineer the home.

I worked a full time job as Chief Software Engineer making 160K, sold a house,  bought two more houses, and had four units tenants turnover ALL while I was in grad school full time.

@Wendy Owens I have an opinion on a few things. 1) It's not so much the cash you need as the cash flow, so you can reverse engineer $10/month and figure out the best way to do that. 2) Dont forget about taxes on flips, you're probably going to pay nearly 50% in taxes. 3) Any way to trim down your living expense?

Depending on the amount of work you will do, you may or may not need actual architectural drawings and engineering calculations if you are moving load walls. 

Welcome:)  If you have any questions on local land development, I work for the City of Surrey in Land Development Engineering.

@Michael Garofalo I am an Electrical Engineer, but not an electrician.

You really need an engineer to put together some site plans to see how many units you can fit with ingress and egress, setbacks, sidewalks, septic, traffic signals, etc.