Kenmore, Bothell, Brier, and Woodinville all have great options.

Seller financing is a GREAT option if you can get a seller to agree to this (which is not easy).

Is Homeaglow an option for Short term cleaning services?

You can then sell the option to a solar developer, but they too won't execute the lease until they confirm they can develop.

I suspect adding you to title is not a good option.  

You can use this tool to figure out that part: https://docs.google.com/document/d/100dRzu-iQEIZbR1adxIASdH2...Once you have that you should engage a local broker to discuss the options for those types of uses in your market and they will be able to help you understand the overall picture and cap rates of the various options.

I work with a team on the ground that helps source deals, project manages rehab and provides property management.

Looking to make another move and not sure what the best investment option is from here, as well as the best lifestyle choice.

There are a bunch of creative options you could do too depending on what your goals are.

As a last resort I would ask their realtor if it's an option to have them apply for a down payment assistance grant, instead of you footing the bill.