They may believe you pushed them into accepting too low of an offer.

While you can theoretically raise the rent, you might very well be better off to look at a 20 applicant pool as a wonderful thing and carefully select a high-quality, long-term tenant at your current price. 

I will be more careful who I hire.I was reading up last night. 

Be careful with appliance warranties from power companies.

I really wouldn't care, but when you have a homeowner losing their home because they're caught up in a contract with someone who has a clause that says the contract is subject-to finding an end buyer & gives them permission to market the property it's no different than a contract that's subject-to flipping 3 keys of coke & finding a cheaper distributer. 

@Isaac Molina IIII would be very careful withdrawing money from retirement accounts to invest in real estate. 

I like your idea of passing lawn care back to them and giving them the $200 concession.

You really need your business to be zero-defect, efficient and high touch before you acquire as those owners will be looking carefully whether to stay or go. 

Mine didn't see me needing the protection of an LLC until I grew larger but advised liability insurance.  

Through some direct marketing, an Executor of an estate reached out to me to sell his dad's house.