[I typed in a long response while my son was preparing for bed and BP choked when I hit submit ... the "saved draft" feature did not seem to work either ... ohhh @Joshua Dorkin]  @Amit M.The biggest cost we experienced with the commercial machines was having the coin acceptor / card readers serviced/adjusted.  

The biggest thing I run into is having to add CHA to houses because they have baseboard or similar heating.

Being completely brand new to real estate investing my biggest challenges are how much money I will need for a down payment on single family rental homes and also figuring out exactly what "Investing in tax liens" is.

The seller is aware of how a sub-to works and has concerns about the due-on-sale clause being invoked.If this were the case, I have a private lender that I work with that can fund the deal.The seller's biggest concern though is if having a due-on-sale clause invoked will affect his credit.

This was our Biggest project to date.

I want to be able to be prosperous in my personal and work life, but also believe that giving back is one of the biggest ways to do that.

Hair is usually the biggest offender for a clogged drain.

Last night I went to bed thinking if you all have/had the same doubts and issues I have/had when working as a wholesaler.My biggest problem since I first started in this business has been to find the really great deals and people to trust.  

I biggest gripe is there no place to set anything down like a hair brush etc. 

I know analysis paralysis is the biggest hurdle for most wannabe real estate investors, but I also don't want to jump in if it's advised to wait until I set- up a more permanent residence.