I have 3 pieces of advice to consider. 1) I’m unfamiliar with the specific condo you mentioned - but as a general rule of thumb when it comes to condos.. 

I think you're missing the most important piece of investing - and thats the assumption that you need to buy right.

Say flooring, go to your local Home Depot and find a flooring you would like to use then do the materials estimate like that (remember to add 10% to your square footage for pieces that will need to get cut).

Def charge a reasonable fee and if your cleaner wants a piece, keep them happy.

They will want a a piece of the profit AND it could be very worth it on your first project.

I suggest to investors to find a situation where all the pieces are put together for you.  

Typically a cost seg can provide a ton of benefits to accelerate depreciation on pieces of the purchase that wouldn't usually be allocated out under normal circumstances. 

There is a level of participate required when you buy a business and a piece of property.While it always depends, on average, acquiring a business will normally require more work.

You could inspect the hot tub water for 15 minutes and still miss something like a piece of hair.

For instance, Choose Chicago (I used to work for them) is the marketing arm for the city and they drive huge pieces of business that will drive hundreds of people into downtown selling out all the hotels and driving prices crazy high.