@Kelsey P.Check with your state, you should be able to find what the requirements are for any changes in the lease.30 day notice to vacate is typical for a 30 day lease.I would write up a new lease, give it to your tenant to review and ask them to sign or vacate at the end of the current lease.I wouldn't want any old leases tied to a new lease with an addendum.

I can also share the local contacts I have made in the past decade for all the services you will need if you decide to pull the trigger ie: Notary, CPA, Real Estate law firms, photographers, property managers, financing, developers, etc. 

Quote from @John Underwood: Also insurance rates are cheaper in SC than FL.Heavy emphasis on this one, especially if you are doing any kind of BRRRR, not only will insurance be expensive, but might also be tricky to find as some providers have stopped servicing FL all together. 

Hard money lenders typically focus on the property's value rather than the borrower's creditworthiness, which could be beneficial given your current Chapter 13 bankruptcy status.

The first thing a "wealthy" person typically does is buy back their time aka assert more control over their situation in life. 

If you are in fact referring to gross rents, then yes you can get gross rents well above that but after all expenses, includeing debt service, PM, maint, cap ex reserves etc, a good deal is about $100 - $200 a door in pure cashflow. 

I’m looking at executing on a 15 unit deal and using third party PM.My question for those who have done the same, how does the third party execute the various requirements such as leasing & maintenance and how much do you pay for those services?

Typically a 20-30% discount on the property after it's all said and done.

Imagine how quickly the "typical' U.S. family could own a home with no debt if three generations lived together and paid one home off instead of renting three? 

You can always wire and not install or do something like a ring doorbell that you discontinue after rehab and they pick up the service or not if they want it.