There are many ways to take payment, cash, check, money order, ACH, credit card, wire transfer so you just need to understand the pros and cons or each so you can make the best choice for you. 

Fix list BasementPlumbing lines PEXLine to hot water heaterTo Kitchen sinkTo Upstairs bathTo DishwasherTo basement toiletNew washer hook upsWash tubNew shut offs all aroundSafety line on WHNew outside spiketsRetape furnace ductsRewire and add junction boxesPull PanelingScrape Walls Paint wallsGutter fixClean Cabinet area'sPaint basement Hallway..Remove Basement ToiletFix front rain gutterKitchenKitchen Trap fixInstall shut offsRoof replacementDish washer fixTotal kitchen Ceiling repairFix plumbing leak in ceilingCleanInstall 220v for stove and dryer and remove old gas linesCeiling fanDoor bell over stoveNew caulkFix basement door lockAdd GFI'sHouseNew LocksRebuild back door jam/paintPull tack stripsWash and Wax floorsNew storm doorDinning room windowScrape and Paint flaking porchGlue wall paperLiving room return ventPull StaplesDinning roomLiving roomStairshallwayNew hallway lightFix or Replace Electric OutletsUpstairs outlets replacedBathroomNew bath medicine cabinetFix tileCleanPlumbing leaksNew shut off toiletRebuild ToiletNew CaulkBedroom onePull flooringChange light switchReplace ceiling fanWash and Wax floorsBedroom twoReplace ceiling fanWash and Wax floorsBedroom threeReplace ceiling fanWash and Wax floorsGarageMan door fix and lockBig door type lockBack window fixTrash /SweepPush Button for Door

I met with another doctor who is retiring and told hm what I am doing and my plan and told him I need investors and he told me I should focus on my career in medicine and forget the real estate thing.

With a GC you loose a lot of the head ache but how much is that going to cost you?

I take my own medicine. 

Living beside a tenant just gives them too much access to you and your family and would just be a source of head ache in the future with the wrong tenant Why don't you just keep your primary residence for your family and buy a duplex which you rent out??

They can do ACH withdrawals from your account if you provide your account details.

I prefer ACH to the appropriate account and checks in our lock box.

We are having problems with ACH returned payments, when a payment is declined and returned it’ takes 6 day form them to let us know, and that’s way too long.

They can last 50 years+, and *most likely* never have a head ache if flashings are done correctly.