BTW, your "criteria" are likely just "rules of thumb" you developed (which is great!)

Please be aware that all national homebuilders, and I would assume solar developers as well, will want enough time in the contract to conduct substantial due diligence, rezone (if needed), and get all required land development permits in place before closing on the land. 

Depending on your goals, this might be a nice vacation property and to diversify your portfolio.

You can do a trial and see if bank feeds connect, if it does, I would then recommend using it over QBO.One of my client that just started in development is short on funds so Xero was the only best option and they are using a local bank so we couldn't connect and a lot of manual entries. 

I'm an investor and flipper in the city, and I work for a developer focused specifically in Lowell as well.

Our ultimate goal is to get into real estate development along with buying rental properties.

Do you plan to further develop the agent side and turn that into a full time thing?

I invest out of state in Pittsburgh from DC and self-manage everything, but it's taken me years to establish the right contacts, develop seamless processes etc. that allow me to handle everything remotely with confidence.

Also, a contractor may not be the best person to develop your scope of work! 

My strategy in Arizona has been adding bedrooms and renting by the room - currently getting 850-950/room in nice neighborhoods.