@Jim LinThe simplest way is your mom deeding the house to you, in her estate planning, but still collecting rent, handle taxes and bills as before is for you to provide her a NNN Master Lease, with nominal payment to you.

I'd say the simplest and most cost effective step would be to house hack where you live... this reduces or eliminates rent, and you will learn the ropes of REI / landlording. 

Yes, it's possible and actually quite realistic, IF you go about it with a plan.The simplest formula for SUCCESS is 1) Make a plan, 2) Work the plan.Please query the subject of "Self Storage" here on Bigger Pockets and then take a look around.  

How quickly the coronavirus mocked our assumptions and challenged our simplest routines.

Option 1: simplest exit strategy.

Thats the simplest advice I could give you.

@Bilal Hussain I think the simplest method is to determine an average use for each space.

The simplest idea is usually best in RE. 

You can typically get an unrelated co-signer passed, but OVER AND OVER AGAIN we see these things go sideways and it is NEVER the initial thought or plan of the couple.The simplest solution (usually the best) would be for YOU to purchase the home and borrow the down payment money (or a portion) from your LT GF.   

Open to any and all suggestions here and hoping if anything is a complicated suggestion, someone can break it down in simplest form for my simpleton brain ;)