I think you have valid concerns about their financial health and it is not unethical for you to reject their application based on those concerns. 

In other words, many times, it's not just about "current land values", ...but it's about "live events" unfolding with the land owners (Sellers).Health issues, death, disability, financial troubles, legal problems, "divorce or separation", job loss (which is a big deal now!)

S1 has a cat and a pet squirrel living with him.

But it is 2 doors down from a hosipital that has recently been taken over by a larger health care group and according to the people I have talked to in the neighborhood things are much safer. 

Financing is sometimes difficult, nearly impossible if the percentage of rentals and or 1 owner is high.Sometimes the HOA's are restrictive on the use, like no short term rentals or rentals or no pets, etc.High HOA fees are another one to watch and it can really skew the numbers for you.

.*1 small dog/no cats or other pets.*$25 mo pet fee/$200 (non-refundable) cleaning fee*Tenant cares for yard (Lawnmower provided).

I can’t remember where but I remember reading that properties built in 78’ and prior were risks for health hazards like lead paint and what not .

Tenants are habitually delinquent and have acquired a pet without prior approval.

I have health issues and at today's status wouldn't attend. 

The basic order will be: Domestic violence/emergencies, criminal, landlord/tenant, civil.Emergency breach of lease involving threats or injury to people or property, and emergency wrongful detainer actions trials will begin on June 5, 2020 (Phase II).Rent escrow actions, provided local departments of health are able to provide inspection, tenant holding over actions trials, as well Warrantsof restitution, will begin on July 20, 2020 (Phase III).Civil trials (i.e. post move out collections cases, suits for failure to return security deposits), and Failure to Pay Rent cases will resume on August 31, 2020 (Phase IV).Courts fully operational on October 5, 2020 (Phase V).Rent court dockets are expected to be staggered throughout the day, at least in Baltimore County.