We are/were hoping to put a $60-70k down payment on a higher-end 'A' new build property with Rent to Retirement as I really like their business model/community, rather than a smaller down payment on a refurbished property in a 'C' area.

It is important to build a team that understands the unique dynamics of this market.Given your experience and substantial equity, sounds like you're in a prime position to capitalize on new opportunities. 

Looking to build a Real Estate portfolio to reach financial freedom, interested in BRRRR

I've included an example below to help illustrate this.So different lenders have different rates (which do vary even for DSCR loans) but these are factors they all consider.See example below:DSCR < 1Principal + Interest = $1,700Taxes = $350, Insurance = $100, Association Dues = $50Total PITIA = $2200Rent = $2000DSCR = Rent/PITIA = 2000/2200 = 0.91Since the DSCR is 0.91, we know the expenses are greater than the income of the property.DSCR >1Principal + Interest = $1,500Taxes = $250, Insurance = $100, Association Dues = $25Total PITIA = $1875 Rent = $2300DSCR = Rent/PITIA = 2300/1875 = 1.23If a purchase, you also generally need reserves / savings to show you have 3-6 month payments of PITIA (principal / interest (mortgage payment), property taxes and insurance and HOA (if applicable).

New construction may be an option, many builders are offering rate buy downs and closing cost assistance and then you get quicker appreciation when they continue to build out the community.

@Alex Johnson Detroit-Michigan falls in the middle of the pack regarding "tenant-friendly".As you start to build your Core Four, NEVER believe what people tell you unless they can explain it logically or provide 3rd party proof.Here's 3rd party proof that Michigan is in the middle of the pack:)https://realwealth.com/learn/landlord-friendly-states/https://www.lawdistrict.com/articles/most-renter-friendly-us...

I hope to build our property management up to that level someday. 

I have came across an old school building that I would love to rehab for the local community.

Zip codes are too big.2) You'd have to factor in Neighborhood population density somehow.

Although forthcoming and we appreciate the honesty, it does not build confidence in the process.