If so, the lender will pay off the existing debt and take 1st DOT for sure.

Do options exist for sub-metering within multifamily while providing electricity with a photovoltaic system? 

However, most likely whatever interest rate you are paying now is way lower than what you can get now, so just make sure if you do refinance that the equity you pull out - closing cost on refinance can actually generate more return for you than the additional interest you have to pay over your existing mortgage. 

You’ll have a $900k loan with him which wraps the existing $700k of debt. 

Other wise what do they have, a reservation booking system for hotels(pretty sure that market is already heavily saturated).

First off - none of those kinds of properties exist in the areas I'm used to.

@Mack Bailey Sounds like you don't fully understand what a subject-to existing lien transaction is.

They are so afraid of vacancy or feel "bad" for raising rents, so rents get way under market, costs go up but there is no cash flow to fix and maintain....and 10 years later, congrats, you are a slumlord and sell, all because you wanted to allow a renter to live in a world that doesn't exist (one with below-market rents.)  

I am also leveraging them for repairs/issues with existing tenants that cannot wait until the rehab....and they generally take care of the property and watch over a lot of things. 

Hard part is making sure you can improve/add to the existing property or a development is more ideal.