I can't see why a landlord would have any objections to this as from their perspective you are putting more skin in the game by having your future credit take a hit if you fail to pay rent and pay on time.

My objective is to move the building in the other direction with improvements and rent increases to get higher quality tenants.    

It's not that I object to you withholding the truth from your Realtor as part of your game - but, don't expect them to like it! 

You're likely to get only a few hundred dollars per month of cash flow from your properties and putting that toward their mortgages will not really pay down the principle that fast, especially considering that you pay more interest than principle at the beginning.You're also buying turnkeys - so you will purchase them at market prices.

I certainly do agree with you @Larry T. on the ethical principles of realtors and Wholesalers...

Ok Stephen heres the deal i have to do the repairs and the payments are 1500 a month right now there are 2 apartment rented the first floor has to be done over complete to make it an apartment the two rents equal the 1500 the new apartment would bring in 1300 a month taxes are 5500 water an sewer are 1050 ins 2400 snow removal 500a year put  away 500a ayear for repairs the 1500 goes towards the principle theres no interest and the balloon payment in 5 years

So if your objective is to preserve cash and you are ok with trading off a little equity then it can be a good approach. 

Otherwise you fall victim to the shiny object syndrome. 

Hey everyone, I have been doing commercial property management privately for over five years now and I'm sure most of you will agree that finding and keeping a solid tenant is the biggest challenge, yet, is the most important objective on your list at all times.I have sandwich signs posted near the main roads at all of my properties, and recently created banners to hang on windows.

I was paying over $600 in interest and under $200 in principle.