Also to attract a better tenant I’m going to work on our detached garage, put drywall between the two spaces and since we have space I’m going to get a quote for an asphalt carport that way I’ll have two spaces for each unit.

Plus, those clusters of C-/D multifamilies tend to attract a certain kind of tenant that's rough to manage for a first-timer (or even with lots of experience) .. plus higher crime, more headaches, etc.. 

It will add value and will help to attract a more stable tenant.

Can anyone in NJ recommend a lender they have used to finance a renovation mortgage?Looking to try to get a loan for a home purchase + renovation costs. Hopefully 75%+ LTV on the home purchase and renovation (up to a ...

.- I see lots of people here have multiple domains: 1 for buying properties, 1 for selling, 1 for flipping, other to attract general investors, Etc. it's something to think about. - also, if you find something cool, sometimes it's best to try to register the domain as quickly as you can.

Your friends could just leave the tenants the way there are as a property already 2/3 rented might appear more attractive to the next buyer.But to accomplish what you want, serving notice to the tenant violating the occupancy limit and filing for eviction if they do not comply sounds like a good start.  

Others say they should charge less to be more attractive.

You want your property to attract them.

That may still work out to an attractive hourly rate for you but I suspect maybe not.

What I meant in my original questions, Is How can I make an attractive offer to potential investors?