If so it might be hard to sell the management side of the business as the the real estate sales may be also under the same company structure.

Then get a business umbrella policy.

To improve your business going forward, it is important that you recognize how you created the problem.There are a portion of residents that if you give them an inch, they will take mile. 

Once you buy a few the deals start coming from all places you wouldn't expect.I met a business owner in town and became friends.

If not again you would be better off buying your own home and having enough yard/space for all of them but 13 is still way to many dogs unless you live on a farm or own acres of land.I have worked in the banking business and have seen people lose their homes that they rent due to landlords kicking them out with very little warning due to breach of contract or a No pet rule. 

I'd rather just invest in something that would gain value and get deductions through an active business - created for the purpose of tax deductions.

It will help you grow your real estate investing business and find motivated sellers very easy in the future.All the best! 

Well yes if you are successful.The reality is 87% of those who try to make a career at selling real estate fail out of the business within just a few years.

Hope your season is busy, too!

Period.I love my family, BUT the stories of issue with family doing business with family are ubiquitous.I hope all goes smooth for you and everyone is happy, BUT......My 2 cents,Mike