They are property owners in your neighborhood, not an external company with no stake in the community other than management fees. 

The question I have is should I use my personal name in the letters or use a company name with logo and website?  

Another option you may not have considered is to work with a developer and build a multi-family property in a desirable area, leverage ECO construction benefits available ($5 to $15 per sq. ft.) and cost segregation and bring in a management company to manage the property once it is ready for occupancy.

We have 2 LLC's that run management companies and 10 LLC's that do real estate investing.

Is it legal to do an off-market transaction straight through the title company without using the agent? 

First, I'd try to find why the water is doing that as you can replace the siding, but if the water is going to keep doing it, you will have that problem again.If it is isn't a condo, I'd talk to your insurance company.

There are companies/agents that specialize in what you are looking for.  

I just recently found out that my company is closing mid summer.

Do you have any reviews/recommendations on property management companies in Kent County. 

We can help you out with offmarket aquisition and Property Management in Cincinnati , give me a call to see if we have answers to all the woes you had with your previous PM companies you used , or if you are new to investing in cincinnati we can start from basics and help you put as well