Plan is to add two additional units to the bottom floor and remodel the upstairs unit. 

Is there an inexpensive way to do a reverse lookup or any better advice you would suggest?

I suggest just keep it simple, RE is just about math, end of story.

Someone gets injured in the basement your home owners insurance probably will not cover it and the liability would be pushed back on you.Would suggest discuss the finish with a Licensed Contractor, Licensed Expeditor and maybe a zoning attorney in regards to adding a unit to current zoned two unit converting to a 3 unit.Also, when buying a two unit and converting it to a 3 Unit, read your documents with out knowledge of the conversion the bank holding your mortgage could call your mortgage.Let me know if you have any questions.RegardsJoe Scorese

It's wise to take into account market research and any upgrades or additional benefits for the tenant.Determining when to raise the rent is influenced by various factors such as lease renewal dates, local market conditions, tenant satisfaction, and lease agreements.

I'll speak with the owner about what you suggested.

I'm trying to do the same thing to my row house in Brookland DC, I was wondering how was your project going and what was the cost, I'll love to meetup with you one day to get any input, suggestions or recommendations you may have for me moving forward with my basement conversion project. 

Also if I am missing anything please add it in as a new metric!

Any suggestions on how to structure the will with specific provisions to allow my stepfather to remain after her death?

I'd probably try to suggest a combination of 5 acres with 20 units per acre and then suggest townhouses on the other 3 acres.