You question is not specific enough. If you are looking to buy an 8 unit building at a 10 CAP there are lenders available to help you.
The property will need to appraise and you will need to seasoned income and expenses. If the property has leases that are paid via Sec. 8 that should actually even help. Each lenders underwiting criteria will vary regarding the LTV etc...
I commercial Broker in your area can provide you with comparable sales of 5-15 unit buildings in that market.
Lenders always have problem, and often times they can be overcome and addressed.
Oct 28, 2010