It's difficult to see how a tenant will be after screened and signing a lease.

I served 5-day notice on the 10th, and lease spells out that eviction process will begin on the 15th, which is Wednesday. 

I am in PA and yes, it is legal to charge late fees to your tenant regardless of Section 8 subsidies or not, provided the tenant's lease allows for them.

You should get these things for all applicants:1. rental application with employment reference and personal reference2. credit3. past landlord reference4. check for eviction historyMost apps like RentSpree include all this in what the tenant pays to send you a report.I cosigned for my daughter and her boyfriend on their first lease.

Quote from @Leeling Chew: Hi all,My tenant's lease expires on December 31, 2024, and converts to a month-to-month tenancy with a $150 rent increase.

Why not just hire a local real estate agent to handle leasing? 

It's difficult to see how a tenant will be after screened and signing a lease.

I am interested in purchasing more triple net leases because I now have more capital.

Likely not allowed in the lease and if the landlord were to allow it they will partner with you and take a good chunk of the profits.

It’s like a whole new lease on life!