While a low-flow shower completes the effort, as @Bill S. mentioned, you will get more bank-for-your buck (or your tenant will) in hot-water reduction.

I have a long-term rental in STN MTN (Stone Mountain) GA, and have a one year lease with a section 8 tenant and content with the cash flow, however, I can make more if the basement gets converted to a separate unit.

Aaron,No you will not find a Bank/Lender that will go into 3rd lien position if you if did I would not want to see that rate in terms of "High".

Our combined expertise and strategic approach enabled us to negotiate favorable terms, ensuring a successful fix-and-flip transaction for Partner Driven.

It sounds like you've really thought through not just what a good deal looks like today, but the other factors that will contribute to a more long-term appreciating value.

I live in the Portland, Maine area and am currently launching my real estate wholesaling business as a short term strategy in order to build knowledge, capital, and a network so that I can eventually start investing in my own projects such as fix and flips, and both short and long term rentals.

So, if the seller is unable to do it from their proceeds or something, then I would budget for that amount out of pocket if it is still a good deal at those terms? 

If the unit they are currently renting does not meet that requirement, then they will need to move to a unit that does.The landlord is under no obligation to lower their rent or change their terms for an existing tenant.  

Longer terms are available as this is considered a second home.

Can someone help me with terms?