Hello my name is Antonio arnao. I am currently studying to get my real estate license in the state of PA and plan on buying my first investment property in the next couple months. I want to buy a 1 to 4 unit multifami...

Brendon congrats on the purchase.To my knowledge and from experience you should charge late fees if they're late on their portion. 

Buyer's agency agreements were already required here before, our regulatory agency just went from strongly recommending them be signed right away but not really requiring them until writing a contract to 100% requiring them to be signed prior to showings.

@Adam BartomeoAny recommendations for the collection agency?

Originally a 30 year lease, theres about 20 years left to an advertising agency. 

But it sounds like we'll have to swallow our pride and take your advice and contact a few real estate agencies.

What percentage of sellers are still contributing in some way, do we have data or knowledge of this?

Unless you're a very seasoned investors, the value in committing to the right agent should be in their vast local market knowledge, expertise of their lane, transactional experience and so on.

We have our own design team, contractors, and real estate agency under one roof, which saves time, cuts costs, and improves communication across projects.

Have you talked to any social service agencies about this yet?