For at least the next year, vacancy isn't going to be an issue (and if you're factoring in tenant turnover costs assuming they bail, their security deposit is 2-months worth of rent, or $2,200, so if they broke their lease and lost their deposit, that would inherently be a significant boost to my cash flow - this property has a track-record of taking about 1-week to fill when vacant, and I've familiarized myself with all of the current landlord's marketing methods and materials to keep it that way - but for the sake of this, we're going to pretend they stay).

Owning ONLY Top Quality NICE Homes in Nice Areas!Everyone knows that the way to get rich is to own Real Estate - but that costs money. People do not just hand you their Good Quality homes for no money. The problem is ...

They have a 1 year lease and have put down a $2250 security deposit.  

Of course, you always have the security deposit as well.One thing to consider is requiring the students' parents to co-sign the lease and be responsible for both the rent and potential damages.

If I am in no hurry I just give them a slot to do it in and they use it for fill in work.

For developers in Denver, City of Denver recently came out with some recommendations for tackling slot homes and rowhomes.

.- Money that you can fully source and paper-trail, such as by lining a $155,322.58 deposit up with a settlement statement from a home you sold that netted you $155,322.58. - Borrowed money that is secured by an asset, most commonly real estate.

I already made deposit for the closing In this case can i sue the seller and the real estate agent to comply they are not helping att all. 

If he can not close or assign the contract he risks forfeiting his earnest money deposit since he breached a contract.

If I sign a contract I plan on buying the property, so unless there is something wrong with the property itself, I am not worried about losing my deposit.