Keep it as neutral as possible. 

Neutral colors.

We get it a Home Depot for $1.59/sf. and it comes in three (3) different colors, all relatively neutral browns and grays. 

I suggest replacing carpet with LVP (go for a neutral look; NOT farmhouse or distressed) + acoustic underlayment if it's an apartment. 

This is cost neutral to your client and it may get the deal done faster.

If so, the rental market is heavily saturated and you’ll not get close to cash flow neutral with a new house. this is something I read today:“I am not sure if there are "investor gurus" or investor podcasts out there telling every investor on the planet where to buy, but the three hottest markets inside Austin are Pflugerville, Round Rock, and Cedar Park.

My goal there is to buy a $150k condo with a 15 year fixed loan that is slightly Cashflow positive or at least Cashflow neutral.

If we do, I was thinking I’d update tile with white subway tile and neutral inexpensive floor and mud pan tile, and a new glass shower enclosure.We are in Clarksburg, MD (DC metro suburb) and I want to hear from you if you think it would hurt our rent if we wait.

Go with something modern and neutral - white, gray or nude colors are great.

In practice, the rents appreciate more than the non-fixed costs and therefore cash flow improves over time.There are variations in properties and their associated expenses, but I would think it is likely that you have either very modest positive cash or modest negative cash for (so about cash flow neutral) at 80% LTV if calculated with my pro forma numbers.As indicated, historically the cash flow improves over the long term from the initial cash flow position.