Effectively good egg is simply a P.O. box that takes a Commission out of your hard earned/saved money, in return, for purportedly providing due diligence to vet the potential projects and sponsors, on your behalf.

I'm not a lawyer, but I've consumed about 1000 hours about Wholesaling both commercial & residential, and none of what they do requires a license.

Not only would you effectively be giving up your right to proceed by way of non-judicial foreclosure, a very messy judicial foreclosure sale might not succeed and even if it did, ability to pass title would thereafter likely be subject to borrower's statutory redemption rights.

What financing strategy would be most effective?

My thinking is that by renting to a residential care facility I can effectively utilize all the space, earn above market rent, and help provide a needed service, while avoiding tenant parking jams. 

However, as Zane mentioned in his response, another option is to consult with a lawyer who specializes in appealing property taxes.

Are there other, more cost-effective alternatives to gain similar support and knowledge?

Once those guys are in place and you have a go-to title company that your realtor recommends and a lawyer.

Successful collection rate on LTR is not even 15% on top of dealing with insane lawyers and social workers who believe that less fortunate people can hurt wealthier people.

Ofcourse I am planning to consult a lawyer first.