The rents from the rental pay for her room at board at the retirement home.

Once you start hiring employees, it's smart to develop it out so you can train them properly and so there is a documented reference guide.

The guests refused to pay.  

It is nearly impossible to follow NYC's requirements and run a proper housing business.

Typically this means they will take longer to close, may not have all the information for the companies they work with, and most hard money brokers get their money by taking an existing product and adding extra points to pay their fee.What is your investor success rate?

Most commercial lenders do not require any seasoning for that entity which means that you can create an LLC and use that entity to purchase the property immediately as long as you have the proper documents.

If the tenants don't care for the pool properly, it could cost you thousands to fix.

The original six month tenant I had extended the lease 9 times and stayed a total of 5 years, paying me about $15k over market rent annually.  

All help is appreciated and I feel really bad because my other tenants go to work and have children that go to school and they are not able to sleep properly because of the loud music. 

A tax advisor can help with deductions and proper reporting.