Purchasing a primary residence with existing renters

[Stephen Lee]

Hi,

I'm new to BiggerPockets but have followed for a year or so and had a question on purchasing a primary residence with existing renters. 

Does anyone know of any large lenders that would underwrite a condo mortgage in which renters will move out within 5 months of closing for the purchase of a primary residence?  My understanding is that the conforming standard is an allowance for up to 60 days.  I have heard exceptions may be granted for situations less than 6 months.  

I thought I'd ask the BiggerPockets brain trust given the knowledgeable members.

Thanks