There's no cleaner app that replaces the relationship you develop with a trusted reliable cleaner/cleaning company and their local handyman contacts.

I got a mailer from NRIA.org offering siding/roofing/ window etc. replacement under government grants.

You may not know the difference of the great area but look at the photos, and try to stick with: kitchen is modern, has heat and air conditioning.More time consuming but also free: call a couple property managers in given city; US census detailsPaying: rentometer; rentguide; insurify; 

Although I wonder from cost & work perspective, is that better/cheaper to do vs demolishing the existing shed and rebuild properly or replacing with a prefab unit (from Home Depot, etc.) after the demolition.

From an insurance standpoint, if your policy was based on Replacement Cost, the company will likely just pay based on the Actual Cash Value (Replacement minus depreciation). 

The HELOC replaces the mortgage in that case, giving you access to as much as 95% of the appraised value of the home.If you do it that way, you can plow all your money into the HELOC, hacking away at your mortgage while you're looking for a new job and a new home, and once you find both, you can pull the stored equity from the home and use it to purchase a new primary.Once the HELOC is in place, you can forever use it as a revolving line of credit to invest in new rentals.If you refinance, even at a better rate, the bank wins.

You have 4 units, Assume 700 sf of flooring to be replaced.

As @Bill Brandt said there are some rules they have to follow in identifying their replacements that can impact what they actually purchase. 

Basically, getting the most stretch from my dollar to move into the 'safe zone'- I'll include a few links on refinishing some basics that are cheaper that replacing if you can do yourself. 

Hi BP,I am currently negotiating a pipe replacement project to change a property’s cast iron pipes to PVC pipes.