If you drive a piece of crap the prospective client might think you can't afford to maintain the property.

Grass was cut every week by Tenant very low and house/yard always well maintained and weeded.

A senior development, most don't want large yards to maintain and the additional unit might well be for other younger relatives.

They can be more expensive to maintain given the proximity to the sea.  

As to ratio analysis, some approaches to an asset portfolio may apply, such as the quick asset test or maturity distribution, but they are not adaptable to real estate as they were designed to measure performance of a liquid asset, real estate is not, the approach to asset management is different in maintaining and improving and revitalization of long term assets. 

., your tenants will notice and the good ones will likely leave.You may be thinking of marketing as just the advertising and person-to-person relationship with the tenants when the rental is vacant, but I believe that how you run and maintain your rentals is also a part of marketing. 

Downtown not really my area.Hillcrest and bankershill seem higher priced, well maintained, older homes.

My husband and I will probably be closing on a 6 unit property in Chicago this summer and I am putting into place our team to maintain the building and make necessary improvements.  

Now compare the cost of a $1M liability policy with the cost of setting up and maintaining an LLC and decide which is right for you. 

This isn't against any codes to my knowledge except it's hard to maintain the grass/vegetation around it which is a violation if it gets too high.