Exhibit 12.1

Sun Communities Inc

Calculation of Ratio of Earnings to Combined Fixed Charges and Preferred Stock Distributions

(Amounts in Thousands, Except Ratios)

	2017		2016		2015		2014		2013
Pre-tax income (loss) from continuing operations before noncontrolling interests, gain on dispositions and distributions from affiliates	$	72,701	$	35,930	$	38,755	$	10,109	$	18,132
Fixed charges (from below)		144,866		137,969		130,305		86,566		86,124
Distributions from equity investments		—		500		7,500		1,200		2,250
Less:
Capitalized interest		2,755		1,595		608		464		678
Preferred return to preferred OP units		4,581		5,006		4,973		2,935		2,764
Preferred stock distributions		7,162		8,946		13,793		6,133		6,056
Earnings	$	203,069	$	158,852	$	157,186	$	88,343	$	97,008
Fixed charges
Interest (including amortization of debt premiums, discounts and deferred financing costs)		127,128		119,163		107,659		73,771		73,339
Interest on mandatorily redeemable debt		3,114		3,152		3,219		3,210		3,238
Interest capitalized		2,755		1,595		608		464		678
Estimate of interest within rental expense		126		107		53		53		49
Preferred return to preferred OP units		4,581		5,006		4,973		2,935		2,764
Preferred stock distributions		7,162		8,946		13,793		6,133		6,056
Fixed charges	$	144,866	$	137,969	$	130,305	$	86,566	$	86,124
Ratio of earnings to combined fixed charges and preferred stock distributions		1.40		1.15		1.21		1.02		1.13
Additional earnings needed to achieve coverage ratio of 1:1		—		—		—		—		—