The promise for the prospective agent to represent every flip from the buy side to the sell side is only as valid as the agent's due diligence and work ethic, and trust would need to be built in the process. 

- Renting it Out: The likely rent I'd get in this area will cover half my mortgage payments at the moment- Add Square Footage: Taxes will likely go up significantly- Build an ADU: Overall ROI will likely not offset much since it'll still be counted as value tied to the one house- Selling Off Land: Sits on .5 acre that I might be able to sell.

But the answer for everyone may differ.Here are the personal attributes I see in those able to achieve a higher than market ROI, enough higher to be able to “scale”.1- Knowledge of real estate principles, real estate law and real estate finance2- Minimum 3 -5 years full time, or near full time experience directly related to real estate investing3- Ability to utilize technology for increased efficiency, capacity, and accuracy4- Excellent hired legal counsel and excellent hired marketing help5- Established method(s) of obtaining consistently high QUALITY deal flow6- Ability to manage and choose people who are NOT employees: Attorneys, Appraisers, Mortgage Brokers, Real Estate Brokers, Title Companies, Surveyors, Marketing Specialists, Accountants, Contractors, Consultants, Property Managers7- A VERIFIABLE track record of success8- Ability to identify, analyze, and negotiate a deal that can be “worked” for “enhanced” ROI9- Some type of competitive advantage; for example for me it’s my ability to analyze and identify mortgage loans that are actually less risky than all other lenders believe (on the investing in debt side), and on the real property side it’s my ability to analyze”pull the trigger” with LESS information than other investors need,  combined with the ability to pay cash, or raise significant capital almost instantly as well as being able to obtain loans at the lowest prime customer bank rate with no recourse or personal liability.  

Quote from @Matt Cook: I would really get with a realtor that is in the area of that property and that sells a lot of homes to comp the property on what it can sell for after the remodel.

I decide to sell.  

Unfortunately, of everything that you have pointed out, this would be the one I would suggest selling. 

We have 60 rentals12 air bb units, Ohio  and Fla. 15-20  flips and wholesales, between buy and sell close at any point. 

Me and my wife have decided to sell our first duplex deal after 4 years of holding it we have built over 250k of equity wow ! 

In fact, New Jersey law prohibits you from listing personal identifiers on the form. 

I think a sale is probably the best thing sell for what its worth dont let an investor suck him into some wholesaler suck his equity from him.. sell re group and move on..