If you want to remote investment and / or turnkey, be sure you vet your providers and management companies thoroughly.

I will be hiring and management company either way. 

The wifi is what will allow you to access the door remotely.If you don't want wifi on it, Then you can still get a smart lock you'll just need to pre-program several different codes into it, and then give out those codes appropriately but you'd need to be on site at the door itself to program initially or update it.From personal experience I find the touch screen or wifi locks to be complete POS's that are not reliable and the battery does not last long.  

In their first year, many agents  go through their personal network and get all the "low hanging fruit".

Have couple of offers to buy, one is convenience store and the other is storage company.

Hey Abhishek, I've been investing in Detroit personally since 2019.

You'll typically see them partnered with traditional Self Storage - meaning those Facilities offering Storage Units for folks to store their household treasures AND on-site parking spaces for Boats, RV's, company trucks, etc. 

Use an Independent Insurance Agency - every home and area and owner is different - no one company can service all situations.

Personally prefer SFR..Not sure about DFW but do have a realtor reference for you..be sure to budget for furniture and furnishings if not sold turn-key..a seller concession is a great way to preserve capital for MTR or STR's..check in with @Joseph Chiofalo for an investor friendly lender..he's excellent at helping structure loan programs for investments.

From my understanding it might have to be a personal loan, which is very expensive.