Even if you decide to switch the nature of the heating system, you should, and still may well be required, to perform this analysis.A detailed heat-loss model will also help you prioritize and plan improvements to the building envelope - such as air sealing and insulation.A few missing bits of information,  which may assist the BP community to provide you with some helpful ideas, include:size and organisation of the building: SFH, duplex, triplex, etc.

Add a safety factor. 

All 3 options will return less % on your money than you could request by lending directly, but in return you get a degree of safety.

We never considered this a bad thing because we could afford it (and have enough of a safety net to cover a market downturn) and knew that San Diego real estate has an excellent historical track record for appreciating over time.

I highly recommend them for anyone with good equity in their home, investor or not, to have that "safety net" available jic. 

I would also include provisions covering daily clean-up and protection of materials and contractor's tools, and adhering to all standards of safety as required by OSHA and state and local law. 

Instead, Dexter and Ypsi are pretty close, even though Dexter has far superior schools, safety, etc.

By yourself and neighborhood safety a concern? 

I doubt I am the only one that has these so thought I would share the recall info.https://www.kidde.com/home-safety/en/us/support/pr..."

Detailed electrical compliance along with the long overdue & more stringent fire safety requirements such as fire sprinklers & 24/7 first responder alarm panel systems etc.