Exhibit 99.15

Rating Agency Grades

Run Date - 1/20/2020 10:09:18 PM

LOAN INFORMATION

INITIAL CREDIT LOAN GRADES

INITIAL COMPLIANCE LOAN GRADES

INITIAL PROPERTY LOAN GRADES

INITIAL OVERALL LOAN GRADES

FINAL CREDIT LOAN GRADES

FINAL COMPLIANCE LOAN GRADES

FINAL PROPERTY LOAN GRADES

FINAL OVERALL LOAN GRADES

AMC Loan ID

Customer Loan ID

Seller Loan ID

Deal Number

Original Loan Amount

DBRS

Fitch

Kroll

Moody's

S&P

Morningstar

DBRS

Fitch

Kroll

Moody's

S&P

Morningstar

DBRS

Fitch

Kroll

Moody's

S&P

Morningstar

DBRS

Fitch

Kroll

Moody's

S&P

Morningstar

DBRS

Fitch

Kroll

Moody's

S&P

Morningstar

DBRS

Fitch

Kroll

Moody's

S&P

Morningstar

DBRS

Fitch

Kroll

Moody's

S&P

Morningstar

DBRS

Fitch

Kroll

Moody's

S&P

Morningstar

[Redact]

430709349

[Redact]

A

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[Redact]

430709280

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C

C

B

B

B

B

B

B

A

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C

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C

A

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[Redact]

430678887

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C

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A

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430678911

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[Redact]

430709274

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430678935

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430709282

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[Redact]

430709305

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430709408

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430709363

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[Redact]

430709283

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[Redact]

430678969

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[Redact]

430709378

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430678971

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430709359

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[Redact]

430709344

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[Redact]

430668627

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[Redact]

430709352

[Redact]

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C

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[Redact]

430668671

[Redact]

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[Redact]

430668670

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[Redact]

430668610

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[Redact]

430668629

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[Redact]

430668654

[Redact]

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[Redact]

430678976

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430668638

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[Redact]

430668659

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[Redact]

430668582

[Redact]

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[Redact]

430668656

[Redact]

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[Redact]

430668597

[Redact]

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[Redact]

430531443

[Redact]

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[Redact]

430531476

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[Redact]

430497223

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[Redact]

430709402

[Redact]

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