Do you have joint or separate finances?  

I have a build to rent property, the cash flow numbers aren't great but it's a great tenant and super low maintenance and head ache early on.

Just ensure you list both people as tenants on the lease and state that they are jointly and severally liable for all rent, money, damages, fees, etc. due to the landlord.

Send a check to cash (these days it’s all ACH) but usually super easy.Just gotta figure out what is right for you.

There’s nothing wrong with that, just understand that an area of lower incomes (not necessarily section 8) with some small time crime such as people smoking joints can be very profitable.

They have an app for the iphone: https://apps.apple.com/us/app/tenantcloud/id773281018Every plan includes the following: Accounting & Payments: Tenant accounting Expense accounting Automatic late fees Management fees Owner distributions Owner contributions Recurring invoicing Partial payments Joint & split rent payments Deposits & credits Invoice printing Accounting export Credit card payments Contacts: Unlimited tenants, owners, professionals Tenant notices Owner approvals Contacts management Roommate settings Owner portal TC messenger Property: Property specs Property gallery Keys & locks management Equipment & service reminders Maintenance request management Property import/export Loan & insurance tracking Property owner settings Owner reports Rental applications: Customizable rental applications Online application fee Tenant screening Online applications Property marketing: Marketing website Listing portal ILS syndication Message/tour inquiries Documents & information: Online leases Agreement template builder Account data export Cloud files storage Email & feed notifications Calendar & automatic reminders To do list Timeline & notes On-demand reports Amortization/depreciation trackers Other features: Customizable dashboard Easy navigation Verification process ios & android apps Online supportBelow is an independent review of this platform I found on the web...

Tenants can pay online (via ACH is free but there is a fee if they use a Debit or CC) and they can see their rent account online.

The added benefit to that is then she can claim being a Qualified Real Estate Professional (if she can prove the required number of hours) and if you file jointly on your taxes, it has HUGE benefits to your tax deductions (ask your CPA about it). 

Do you know if it was held as Tenants in Common or held as Joint Tenants with Right of survivorship? 

We would like the property to be in his name, so he can have all the tax benefits of being a homeowner.We are also open to adding him to the current deed, so we become joint tenants.