Does your lease say notify you in writing with maintenance issues?

Personally I'd disable, winterize, or remove it due to costs of maintenance.  

But you will hear how we respond when vacancies and unexpected maintenance issues arise.If you have trouble getting the feedback you seek, please contact me.  

Phillip DakhnovetsGuardian Property Management & Maintenance 

She is willing to sign on as the main tenant which means she is responsible for the apartment. my thoughts thinking out loud:the other prospective tenants have income issues so at least in this case I know the rent will be paid. the mother has pretty significant assets (low 6 figures + another 6 figures from sale of the house) if he destroys the property I could go after her for it right?

You only need a place to track tenant information, payment history, maintenance, etc.

But if you allow tenants to have pets it is not maintenance free and needs to be cleaned/sprayed down etc.

Also got to think about maintenance which most investors set aside 15-20% of the rent just in case.

This creates two loan payments ($100,000 of equity and $300,000 on the new mortgage).Key NumbersHome Equity Loan Interest Rate: 6%Mortgage Interest Rate: 7%Rental Income: $3,000 per monthExpenses (management, taxes, insurance, maintenance): $800 per monthIncome and ExpensesMonthly Rental Income: $3,000Monthly Expenses: $800Monthly Mortgage Payment: $2,000ExplanationThe investor earns $3,000 in rent each month.They pay $2,000 on the investment property mortgage and $800 on other expenses.This leaves $200 profit each month or $2,400 per year.However, you have to pay $6,000 interest on the equity borrowed.This leaves you with an annual loss of $3,600.This example shows that while the rental property generates positive monthly income, the interest cost of borrowing the initial $100,000 results in an overall annual loss.

My lease states that the leassee is responsible for all guests, so mostly I use that, but essentially yes add to lease or have them officially sublet from the main tenant and send me a copy of the sublease.