I am struggling with determining what type of floor I should go with for the main area, kitchen, stairs and hallway.  

Floors under the kitchen and baths may be rotten.   

I usually will not gut kitchens, baths or anything else on holds but I will update what is necessary.Flips depending on the condition they are in will usually be gut rehabs, new everything on the interior including mechanicals.

Thanks Josh and Brandon for all this :) On to my question:I am a first time real estate investor - kind of recent post-grad (4 years out) and paid off all my loans and finally saving some money. 

A while back, I posted on BP asking for recommendations on kitchen designers in Austin, to help with a rehab we're doing on one of our rental properties.

While working as IT analyst for 17 I did home improvement on the side and have a number of kitchens, bathrooms, basements, and other improvement projects under my belt.

Instead maybe offer to add something of value in return for the rent increase (a nicer kitchen, bathroom, something they want fixed.)

With the money we made from this arrangement we were able to build a new construction home for $300,000, 2000 sq ft finished (5 bed 3 bath) then use a good chunk of that money to finish the basement as an ADU, making our home a 3500 sq ft 8 bed 5 bath, 2 full kitchens, 2 laundry home.

I am on the very brink of leaving my day job to do full time real estate investing and am owning/controlling 67 units having started less than three years ago. 

Additionally, based on my limited knowledge it seems like the experts on bigger pockets recommend starting with a home under $200,000 for a first time real estate investor.