I got it off HUD auction and it has too many use restrictions for any lender to lend on it; and buyer's loan application is getting rejected from many places.

If your employer's payroll software is not designed to compute withholding amounts for more than 10 allowances, it will probably just withhold for 10 even if you claimed more allowances. 

Also Application fees?

I dont have personal experience with either, but I have tried to protect myself from both.My application has a spot on it where they are required to list an emergency contact person who can assist in their move-out if they become deceased, hospitalized (long-term), or incarcerated.  

With many software companies specializing in web based with log ins for owners there is no reason you should have access to your own cash flow reports when you want-units:staff ratio.  

You get your own account.It has a $100 application fee and $150 a year for unlicensed assistant

They can use cash though, which a lot of tenants like.Eventually you can get software that will allow you to either autodraft from a tenant's account or have a tenant portal where the tenant can pay on-line.  

I am looking for the best software and/or a service that will provide me with good quality motivated seller leads, at a reasonable price. 

I'm running an ad on Indeed and have gotten several quality applicants. 

By buying the home in his LLC and not in his personal name then the balloon payment issue relative to owner occupants would not be applicable.